Academic literature on the topic 'Receptor'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Receptor.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Receptor"

1

Mangal, Suruchi, Manisha Sharma, Mridu Manjari, Rahul Mannan, and Sunit Tandon. "Expression Of Androgen Receptor, Estrogen Receptor And Progesterone Receptor In Endometrial Carcinoma (Immunohistochemical Study)." Annals of Pathology and Laboratory Medicine 7, no. 5 (May 28, 2020): A248–252. http://dx.doi.org/10.21276/apalm.2726.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Johnstone, Elizabeth K. M., and Kevin D. G. Pfleger. "Profiling novel pharmacology of receptor complexes using Receptor-HIT." Biochemical Society Transactions 49, no. 4 (August 26, 2021): 1555–65. http://dx.doi.org/10.1042/bst20201110.

Full text
Abstract:
Many receptors are able to undergo heteromerisation, leading to the formation of receptor complexes that may have pharmacological profiles distinct from those of the individual receptors. As a consequence of this, receptor heteromers can be classed as new drug targets, with the potential for achieving greater specificity and selectivity over targeting their constituent receptors. We have developed the Receptor-Heteromer Investigation Technology (Receptor-HIT), which enables the detection of receptor heteromers using a proximity-based reporter system such as bioluminescence resonance energy transfer (BRET). Receptor-HIT detects heteromers in live cells and in real time, by utilising ligand-induced signals that arise from altered interactions with specific biomolecules, such as ligands or proteins. Furthermore, monitoring the interaction between the receptors and the specific biomolecules generates functional information about the heteromer that can be pharmacologically quantified. This review will discuss various applications of Receptor-HIT, including its use with different classes of receptors (e.g. G protein-coupled receptors (GPCRs), receptor tyrosine kinases (RTKs) and others), its use to monitor receptor interactions both intracellularly and extracellularly, and also its use with genome-edited endogenous proteins.
APA, Harvard, Vancouver, ISO, and other styles
3

Nieber, Karen, and Sebastian Michael. "Adenosine receptors: Intermembrane receptor–receptor interactions in the brain." Synergy 1, no. 2 (December 2014): 83–91. http://dx.doi.org/10.1016/j.synres.2014.10.001.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Ecke, Denise, Theodor Hanck, Mohan E. Tulapurkar, Rainer Schäfer, Matthias Kassack, Rolf Stricker, and Georg Reiser. "Hetero-oligomerization of the P2Y11 receptor with the P2Y1 receptor controls the internalization and ligand selectivity of the P2Y11 receptor." Biochemical Journal 409, no. 1 (December 11, 2007): 107–16. http://dx.doi.org/10.1042/bj20070671.

Full text
Abstract:
Nucleotides signal through purinergic receptors such as the P2 receptors, which are subdivided into the ionotropic P2X receptors and the metabotropic P2Y receptors. The diversity of functions within the purinergic receptor family is required for the tissue-specificity of nucleotide signalling. In the present study, hetero-oligomerization between two metabotropic P2Y receptor subtypes is established. These receptors, P2Y1 and P2Y11, were found to associate together when co-expressed in HEK293 cells. This association was detected by co-pull-down, immunoprecipitation and FRET (fluorescence resonance energy transfer) experiments. We found a striking functional consequence of the interaction between the P2Y11 receptor and the P2Y1 receptor where this interaction promotes agonist-induced internalization of the P2Y11 receptor. This is remarkable because the P2Y11 receptor by itself is not able to undergo endocytosis. Co-internalization of these receptors was also seen in 1321N1 astrocytoma cells co-expressing both P2Y11 and P2Y1 receptors, upon stimulation with ATP or the P2Y1 receptor-specific agonist 2-MeS-ADP. 1321N1 astrocytoma cells do not express endogenous P2Y receptors. Moreover, in HEK293 cells, the P2Y11 receptor was found to functionally associate with endogenous P2Y1 receptors. Treatment of HEK293 cells with siRNA (small interfering RNA) directed against the P2Y1 receptor diminished the agonist-induced endocytosis of the heterologously expressed GFP–P2Y11 receptor. Pharmacological characteristics of the P2Y11 receptor expressed in HEK293 cells were determined by recording Ca2+ responses after nucleotide stimulation. This analysis revealed a ligand specificity which was different from the agonist profile established in cells expressing the P2Y11 receptor as the only metabotropic nucleotide receptor. Thus the hetero-oligomerization of the P2Y1 and P2Y11 receptors allows novel functions of the P2Y11 receptor in response to extracellular nucleotides.
APA, Harvard, Vancouver, ISO, and other styles
5

Doukhanina, Elena V., Nestor R. Apuya, Hye-Dong Yoo, Chuan-Yin Wu, Patricia Davidow, Shannon Krueger, Richard B. Flavell, Richard Hamilton, and Steven C. Bobzin. "Expression of Human Nuclear Receptors in Plants for the Discovery of Plant-Derived Ligands." Journal of Biomolecular Screening 12, no. 3 (January 26, 2007): 385–95. http://dx.doi.org/10.1177/1087057107299255.

Full text
Abstract:
Plants have the potential to produce a wide array of secondary metabolites that have utility as drugs to treat human diseases. To tap this potential, functional human nuclear receptors have been expressed in plants to create in planta screening assays as a tool to discover natural product ligands. Assays have been designed and validated using 3 nuclear receptors: the estrogen receptor (ER), the androgen receptor (AR), and the heterodimeric retinoid X receptor-α plus thyroid hormone receptorβ (RXRA/THRB). Nuclear receptor—reporter constructs have been expressed in plants to detect the presence of natural ligands that are produced de novo in several plant species during different stages of development, in various tissues, and in response to different stress elicitors. Screening experiments with ER, AR, and RXRA/THRB have been conducted, leading to the identification of plant sources of natural product ligands of human nuclear receptors. This in planta screen has led to the identification of previously unreported ER ligands, providing evidence of the complementary value of this approach to current in vitro high-throughput screening assays. ( Journal of Biomolecular Screening 2007:385-395)
APA, Harvard, Vancouver, ISO, and other styles
6

Mihajlović, Ljubiša, Milica Mihajlović, and Vladan Mihajlović. "Molekularni mehanizam patogenog delovanja virusa SARS-CoV-2, uloga ACE2 receptora u generisanju surfaktanta i održanju stabilnosti velikih funkcionalnih površina." Timocki medicinski glasnik 46, no. 4 (2021): 178–84. http://dx.doi.org/10.5937/tmg2104178m.

Full text
Abstract:
Virus SARS-CoV-2 uzrokuje COVID-19 vezivanjem za ACE2 receptor. SARS-CoV-2 se za razliku od ostalih korona virusa intenzivnije vezuje za ACE2 receptor. Ekspresija ACE2 receptora je posebno karakteristična za ćelije alveolarnog tipa 2, endotelne ćelije malih i velikih arterija i ćelije glatkih mišića arterija, enterocite tankog creva, Leidigove i Sertolijeve ćelije, proksimalne ćelije bubrežnih tubula i ćelija creva. Zajednička karakteristika ćelija, tkiva i organa, koji imaju visoku ekspresiju ACE2, je da imaju "veliku funkcionalnu površinu". ACE2 receptor je kritičan za održavanje integriteta i stabilnosti "velikih funkcionalnih površina" u tim organima. Stabilnost "velikih funkcionalnih površina" ACE2 receptor realizuje produkcijom površinskih stabilizatora, surfaktanata. Uloga surfaktanata je stabilizacija i imunoprotekcija velikih funkcionalnih površina. Osobe sa manjom ekspresijom ACE2 receptora (gojazni, stariji, osobe sa komorbiditetima, muškarci) su podložnije COVID-19. Vezivanjem za ACE2 receptore, SARS-CoV-2 blokira produkciju surfaktanta u tolikoj meri da antigeni "velikih funkcionalnih površina" postaju "vidljivi" odbrambenom, imunoiloškom sistemu organizma. Tako nastaju upalne i druge simptomatske reakcije karakteristične za COVID-19. Odatle sledi, da je molekularni mehanizam patološkog dejstva virusa SARS-CoV-2 u slučaju COVID-19 najverovatnije uzrokovan inhibicijom ACE2 receptora i smanjenom produkcijom surfaktanta. Ostaju dalje provere u tom pravcu.
APA, Harvard, Vancouver, ISO, and other styles
7

Presky, D. H., U. Gubler, R. A. Chizzonite, and M. K. Gately. "IL12 receptors and receptor antagonists." Research in Immunology 146, no. 7-8 (September 1995): 439–45. http://dx.doi.org/10.1016/0923-2494(96)83013-6.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Hu, Wenhui, Sunila Mahavadi, Jiean Huang, Fang Li, and Karnam S. Murthy. "Characterization of S1P1 and S1P2 receptor function in smooth muscle by receptor silencing and receptor protection." American Journal of Physiology-Gastrointestinal and Liver Physiology 291, no. 4 (October 2006): G605—G610. http://dx.doi.org/10.1152/ajpgi.00147.2006.

Full text
Abstract:
Sphingosine-1-phosphate (S1P) induces an initial Ca2+-dependent contraction followed by a sustained Ca2+-independent, RhoA-mediated contraction in rabbit gastric smooth muscle cells. The cells coexpress S1P1 and S1P2 receptors, but the signaling pathways initiated by each receptor type and the involvement of one or both receptors in contraction are not known. Lentiviral vectors encoding small interfering RNAs were transiently transfected into cultured smooth muscle cells to silence S1P1 or S1P2 receptors. Phospholipase C (PLC)-β activity and Rho kinase activity were used as markers of pathways mediating initial and sustained contraction, respectively. Silencing of S1P1 receptors abolished S1P-stimulated activation of Gαi3 and partially inhibited activation of Gαi1, whereas silencing of S1P2 receptors abolished activation of Gαq, Gα13, and Gαi2 and partially inhibited activation of Gαi1. Silencing of S1P2 but not S1P1 receptors suppressed S1P-stimulated PLC-β and Rho kinase activities, implying that both signaling pathways were mediated by S1P2 receptors. The results obtained by receptor silencing were corroborated by receptor inactivation. The selective S1P1 receptor agonist SEW2871 did not stimulate PLC-β or Rho kinase activity or induce initial and sustained contraction; when this agonist was used to protect S1P1 receptors so as to enable chemical inactivation of S1P2 receptors, S1P did not elicit contraction, confirming that initial and sustained contraction was mediated by S1P2 receptors. Thus S1P1 and S1P2 receptors are coupled to distinct complements of G proteins. Only S1P2 receptors activate PLC-β and Rho kinase and mediate initial and sustained contraction.
APA, Harvard, Vancouver, ISO, and other styles
9

Mika, Kaan, Steeve Cruchet, Phing Chian Chai, Lucia L. Prieto-Godino, Thomas O. Auer, Sylvain Pradervand, and Richard Benton. "Olfactory receptor–dependent receptor repression in Drosophila." Science Advances 7, no. 32 (August 2021): eabe3745. http://dx.doi.org/10.1126/sciadv.abe3745.

Full text
Abstract:
In olfactory systems across phyla, most sensory neurons express a single olfactory receptor gene selected from a large genomic repertoire. We describe previously unknown receptor gene–dependent mechanisms that ensure singular expression of receptors encoded by a tandem gene array [Ionotropic receptor 75c (Ir75c), Ir75b, and Ir75a, organized 5′ to 3′] in Drosophila melanogaster. Transcription from upstream genes in the cluster runs through the coding region of downstream loci and inhibits their expression in cis, most likely via transcriptional interference. Moreover, Ir75c blocks accumulation of other receptor proteins in trans through a protein-dependent, posttranscriptional mechanism. These repression mechanisms operate in endogenous neurons, in conjunction with cell type–specific gene regulatory networks, to ensure unique receptor expression. Our data provide evidence for inter-olfactory receptor regulation in invertebrates and highlight unprecedented, but potentially widespread, mechanisms for ensuring exclusive expression of chemosensory receptors, and other protein families, encoded by tandemly arranged genes.
APA, Harvard, Vancouver, ISO, and other styles
10

De Weerth, A., J. R. Pisegna, and S. A. Wank. "Guinea pig gallbladder and pancreas possess identical CCK-A receptor subtypes: receptor cloning and expression." American Journal of Physiology-Gastrointestinal and Liver Physiology 265, no. 6 (December 1, 1993): G1116—G1121. http://dx.doi.org/10.1152/ajpgi.1993.265.6.g1116.

Full text
Abstract:
Cholecystokinin (CCK) receptors mediate pancreatic acinar secretion and gallbladder contraction. Pharmacological and functional studies in pancreas and gallbladder demonstrate a CCK-A receptor subtype in both tissues. However, some pharmacological studies and affinity cross-linking studies of CCK receptors on pancreatic acini and gallbladder suggest that these two tissues possess two different subtypes of the CCK-A receptor. We cloned these receptors in guinea pig using a cDNA clone of the CCK-A receptor from rat pancreas. The guinea pig gallbladder CCK-A receptor was cloned by hybridization screening of a gallbladder cDNA library using a cDNA probe from the rat CCK-A receptor coding region. The guinea pig pancreas CCK-A receptor cDNA was cloned via the polymerase chain reaction using primers corresponding to the guinea pig gallbladder CCK-A receptor 5'- and 3'-noncoding regions. CCK-A receptor clones from guinea pig pancreas and gallbladder had identical nucleotide sequences, which were 80% homologous to the rat CCK-A receptor cDNA sequence. The deduced amino acid sequence from guinea pig CCK-A receptors was 89% homologous to the rat CCK-A receptor sequence. Dose-inhibition binding studies of transiently expressed receptors by CCK agonists and antagonists exhibited a CCK-A receptor pharmacologically similar to the rat CCK-A receptor. These studies indicate that the CCK-A receptors in guinea pig pancreas and gallbladder are identical and do not support previous proposals that they may represent different receptor subtypes.
APA, Harvard, Vancouver, ISO, and other styles

Dissertations / Theses on the topic "Receptor"

1

Ott, Thomas Ruthard. "Receptor activation in GNRH receptors." Doctoral thesis, University of Cape Town, 2000. http://hdl.handle.net/11427/2700.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

ZHANG, SHENGWEN. "THE OPIOID RECEPTOR-LIKE RECEPTOR ORL1: SIGNALING AND INTERACTION WITH OPIOID RECEPTORS." University of Cincinnati / OhioLINK, 2002. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1029419843.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Zhang, Shengwen. "The opioid receptor-like receptor ORL1 signaling and interaction with opioid receptors /." Cincinnati, Ohio : University of Cincinnati, 2002. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=ucin1029419843.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Oliveira-Giacomelli, Ágatha. "Papel dos receptores purinérgicos em modelo animal de doença de Parkinson." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/46/46131/tde-26112018-074709/.

Full text
Abstract:
A Doença de Parkinson é uma doença altamente incapacitante e de grande prevalência. Pouco se sabe sobre sua etiologia e os tratamentos atuais consistem na diminuição dos sintomas, uma vez que ainda não foi encontrada uma maneira de reverter o déficit de neurônios dopaminérgicos observados nos pacientes acometidos. Sabe-se que os receptores purinérgicos são encontrados por todo o sistema nervoso central, não só no indivíduo adulto como também em diferentes estágios do desenvolvimento embrionário e estão envolvidos com proliferação e diferenciação celular. Este trabalho estudou a participação dos receptores purinérgicos em modelo animal de doença de Parkinson por lesão dos neurônios dopaminérgicos da via nigroestriatal com 6-OH dopamina (6-OHDA). Realizamos a análise do perfil de expressão gênica dos diferentes receptores após a lesão e subsequente modulação. Observamos expressão gênica alterada dos receptores P2X7 e P2Y6 até 5 semanas após a lesão. O uso do antagonista do receptor P2X7 Brilliant Blue G (BBG) induziu a regeneração da via nigroestriatal e o uso do antagonista do receptor P2Y6 MRS2578 preveniu a morte dos neurônios. Como esses efeitos foram acompanhados pela inativação de células microgliais, supõe-se que o controle do microambiente neuroinflamatório causado pela injeção de 6-OHDA seja a principal causa do efeito antiparkinsoniano observado pelo tratamento com BBG e MRS2578. Além disso, o transplante celular com células precursoras neuraisnão foi capaz de reverter o comportamento hemiparkinsoniano dos animais lesionados. Apesar do uso concomitante com BBG reduzir o comportamento, parece que esse efeito deve-se ao BBG per se, uma vez que o tratamento somente com o antagonista de P2X7 foi mais eficaz. De maneira geral, a modulação da atividade dos receptores purinérgicos se mostrou uma ferramenta promissora na pesquisa de cura e compreensão das bases moleculares da Doença de Parkinson
Parkinson\'s disease is a highly disabling and prevalent disease. Little is known about its etiology and the current treatments consist in the reduction of the symptoms, since there is no known method to reverse the dopaminergic neurons deficit observed in patients. Purinergic receptors are found throughout the central nervous system, not only in the adult individual but also at different stages of embryonic development, and are involved in proliferation and differentiation. This work investigated the role of purinergic receptors in the animal model of Parkinson\'s disease induced by 6-OH dopamine (6-OHDA) injection and consequent death of dopaminergic neurons of the nigrostriatal pathway. Patterns of purinergic receptors gene expression after the lesion and subsequent modulation were analyzed. We observed altered gene expression of P2X7 and P2Y6 receptors within 5 weeks of injury. The use of the P2X7 receptor antagonist Brilliant Blue G (BBG) induced the regeneration of the nigrostriatal pathway and treatment with P2Y6 receptor antagonist MRS2578 prevented the death of the neurons. Since these effects were accompanied by the inactivation of microglial cells, it is assumed that the control of neuroinflammatory milieu caused by the 6-OHDA injection is the main cause of the antiparkinsonian effect observed by the treatment with BBG and MRS2578. In addition, transplantation with neural precursor cells was not able to reverse the hemiparkinsonian behavior of injured animals. Although concomitant use with BBG improved cell engraftment, it appears that this effect is due to BBG per se, since treatment with only this P2X7receptor antagonist was more effective. In general, modulation of purinergic receptor activity showed to be a promising tool in the research of cure and understanding of the molecular bases of Parkinson\'s Disease.
APA, Harvard, Vancouver, ISO, and other styles
5

Sokolovski, Alexandra. "Sigma-1 Receptors Modulate NMDA Receptor Function." Thèse, Université d'Ottawa / University of Ottawa, 2013. http://hdl.handle.net/10393/23652.

Full text
Abstract:
The sigma-1 receptor (σ-1R) is an endoplasmic reticulum (ER) protein that modulates a number of ion channels. It is hypothesized that σ-1Rs activated with agonist translocate to the plasma membrane. The σ-1R potentiates N-methyl-D-aspartate Receptors (NMDARs), important constituents of synaptic plasticity. NMDARs are anchored in the plasma membrane by Postsynaptic Density Protein-95 (PSD-95). The mechanism behind σ-1R modulation of NMDARs is not known. The results of my investigation confirm that σ-1Rs localize extrasomatically. Following σ-1R activation, σ-1R localization to dendrites and postsynaptic densities (PSDs) is upregulated. Unpublished work from our lab has shown that σ-1Rs associate with PSD-95 and NMDARs. Furthermore, immunocytochemistry (ICC) showed σ-1R colocalization with PSD-95 and NMDAR subunits. After σ-1R activation there was significantly increased colocalization between σ-1R, PSD-95, and GluN2B. Overall, this study may have provided insight into the molecular mechanism behind σ-1R modulation of NMDARs, which could have implications in the understanding of synaptic plasticity.
APA, Harvard, Vancouver, ISO, and other styles
6

Chakraborty, Raja. "Structure function studies on prostanoid receptors: Thromboxane A2 receptor (TP) and Prostacyclin receptor (IP)." Elsevier Ltd, 2011. http://hdl.handle.net/1993/23744.

Full text
Abstract:
Cell membrane receptors help to mediate communication between the cell and its environment. The largest group of these membrane receptors belong to the family of G protein-coupled receptors (GPCRs). GPCRs contain seven transmembrane (TM) helices and signal predominantly through heterotrimeric G proteins in response to diverse extracellular stimuli. Previously, three levels of amino acid conservation were proposed to understand the structure and function of a GPCR. This includes “signature” amino acids, “group –conserved” amino acids and amino acids conserved only within a specific subfamily. The group-conserved residues in class A GPCR family involve amino acid conservation of up to 99% when considered as a group of small and weakly polar residues (Ala, Gly, Ser, Cys and Thr). These group-conserved residues have been proposed as key determinants in helix-helix interactions. Therefore, I selected these residues for structure-function analysis in the amine and the prostanoid receptor sub-families of class A GPCRs. Molecular and biochemical assays clearly demonstrate the importance of group-conserved residues in β2-adrenergic receptor and thromboxane A2 receptor (TP) structure and function. These studies led to the identification of a non-synonymous single nucleotide polymorphic variant (nsSNP) A160T in TP to be a constitutively active mutant (CAM). Further, the TP-CAM was used as a pharmacological tool that enabled classification of well-known TP-blockers, into neutral antagonists and inverse agonists. The role of TP-A160T in prostanoid receptors, TP- Prostacyclin receptor (IP) heterodimerization and signaling was investigated. Activation of a GPCR ultimately leads to structural changes in its intracellular loops (ICLs), which in turn activates G-protein. TP activates its cognate G protein (Gαq), while IP mediates signaling, through Gαs. Using TP-IP chimeric receptors, molecular modelling, and site directed mutagenesis studies I determined the specific ICL regions required for G protein coupling in TP and IP. Significant challenges exist in expressing and purifying GPCR-CAMs in amounts required to pursue biophysical studies. Using tetracycline inducible HEK293S system, A160T was expressed at high-levels and CD spectropolarimetry studies were successfully pursued on the purified A160T. The CD spectra showed that the loss of thermal stability of the A160T mutant is due to the subtle changes in the secondary structure of the A160T protein. These studies involving molecular, biochemical and pharmacological approaches provide novel insights into the structure and function of prostanoid receptors TP and IP.
APA, Harvard, Vancouver, ISO, and other styles
7

Jiang, Ning. "Kinetic analysis of Fcγ receptor and T cell receptor interacting with respective ligands." Diss., Georgia Institute of Technology, 2005. http://hdl.handle.net/1853/26716.

Full text
Abstract:
Low affinity Fcg receptor III (FcgRIII, CD16) triggers a variety of cellular events upon binding to the Fc portion of IgG. A real-time flow cytometry method was developed to measure the affinity and kinetics of such low affinity receptor/ligand interactions, which was shown as an easily operated yet powerful tool. Results revealed an unusual temperature dependence of reverse rate of CD16aTM dissociating from IgG. Except for a few studies using mammalian cell CD16s, most kinetics analyses use purified aglycosylated extracellular portion of the molecules, making it impossible to assess the importance of the receptor anchor and glycosylation on ligand binding. We used a micropipette adhesion frequency assay to demonstrate that the anchor length affects the forward rate and affinity of CD16s for IgG in a species specific manner, most likely through conformational changes. Receptor glycosylation dramatically reduced ligand binding by 100 folds. T cell receptor (TCR) is arguably the most important receptor in the adaptive human immune system. Together with coreceptor CD4 or CD8, TCR can discriminate different antigen peptides complexed with major histocompatibility complex (MHC) molecule (pMHC), which differ by as few as only one amino acid, and trigger different T cell responses. When T cell signaling was suppressed, TCR had similar affinity and kinetics for agonist and antagonist pMHC whose binding to CD8 was undetectable. TCR on activated T cell had a higher affinity for pMHCs, suggesting that TCRs organize themselves differently on activated T cells than on naïve T cells. In the absence of inhibitors for signaling, TCR binds agonist pMHC with several orders of magnitude higher affinity than antagonist pMHC. In addition, engagement of TCR by pMHC signals an upregulation of CD8 binding to pMHC, which is much stronger than the TCR-pMHC binding. The transition from weak TCR binding to the strong CD8 binding takes place around 0.75 second after TCR in contact with pMHC and can be reduced by several inhibitors of tyrosine and lipid phosphorylation, membrane rafts, and actin cytoskeleton. These results provide new insights to understanding T cell discrimination.
APA, Harvard, Vancouver, ISO, and other styles
8

Weaver, Richard Emyr. "Ligand-receptor interactions at the parathyroid hormone receptors." Thesis, University of Leeds, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.531595.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Björnström, Linda. "Molecular mechanisms of alternative estrogen receptor signaling /." Stockholm, 2003. http://diss.kib.ki.se/2003/91-7349-509-3/.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Chu, Kwun Pok. "Computational studies of nuclear receptors : estrogen receptors, glucocorticoid receptors, and farnesoid X receptor." HKBU Institutional Repository, 2009. http://repository.hkbu.edu.hk/etd_ra/1058.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Books on the topic "Receptor"

1

Fuxe, Kjell, and Luigi F. Agnati, eds. Receptor-Receptor Interactions. London: Palgrave Macmillan UK, 1987. http://dx.doi.org/10.1007/978-1-349-08949-9.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Fuxe, Kjell, and Luigi F. Agnati, eds. Receptor-Receptor Interactions. Boston, MA: Springer US, 1987. http://dx.doi.org/10.1007/978-1-4684-5415-4.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Renato, Lauro, and Pirro Roberto De, eds. Handbook on receptor research: Insulin receptors. Roma: Field Educational Italia, Acta Medica, 1985.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
4

1928-, Thompson James C., and Galveston International Symposium on Gastrointestinal Endocrinology: Receptors and Post-Receptor Mechanisms (2nd : 1989), eds. Gastrointestinal endocrinology: Receptors and post-receptor mechanisms. San Diego: Academic Press, 1990.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
5

Conn, P. Michael. Receptor Molecular Biology: Receptor Molecular Biology. Burlington: Elsevier, 1995.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
6

Martin, Sarter, Nutt David J. 1951-, and Lister Richard G, eds. Benzodiazepine receptor inverse agonists. New York: Wiley-Liss, 1995.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
7

Boulton, Alan A., Glen B. Baker, and Pavel D. Hrdina. Receptor Binding. New Jersey: Humana Press, 1986. http://dx.doi.org/10.1385/0896030784.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Litwack, Gerald, ed. Receptor Purification. Totowa, NJ: Humana Press, 1990. http://dx.doi.org/10.1007/978-1-4612-0461-9.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Litwack, Gerald, ed. Receptor Purification. Totowa, NJ: Humana Press, 1990. http://dx.doi.org/10.1007/978-1-4612-0477-0.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Colombo, Giancarlo, ed. GABAB Receptor. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-46044-4.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Book chapters on the topic "Receptor"

1

Müller, Judith M., and Roland Schüle. "Sex Steroid Receptors: Androgen Receptor, Estrogen Receptors, Progesterone Receptor." In Encyclopedia of Molecular Pharmacology, 1415–21. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-57401-7_163.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Müller, Judith M., and Roland Schüle. "Sex Steroid Receptors: Androgen Receptor, Estrogen Receptors, Progesterone Receptor." In Encyclopedia of Molecular Pharmacology, 1–7. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-21573-6_163-1.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Hollenberg, M. D. "Receptor Regulation and Receptor-Receptor Communication." In Receptor-Receptor Interactions, 546–54. London: Palgrave Macmillan UK, 1987. http://dx.doi.org/10.1007/978-1-349-08949-9_43.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Hollenberg, M. D. "Receptor Regulation and Receptor-Receptor Communication." In Receptor-Receptor Interactions, 546–54. Boston, MA: Springer US, 1987. http://dx.doi.org/10.1007/978-1-4684-5415-4_43.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Bloom, Floyd E., John Morrison, Elena Battenberg, David Lewis, and Michael Campbell. "Interactions between Convergent Afferent Transmitter Systems." In Receptor-Receptor Interactions, 3–12. London: Palgrave Macmillan UK, 1987. http://dx.doi.org/10.1007/978-1-349-08949-9_1.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Moss, Robert L., Carol A. Dudley, Yang-In Kim, and Misty Eaton. "Estrogenic and Antiestrogenic Modulation of Neuronal Membrane Sensitivity." In Receptor-Receptor Interactions, 105–18. London: Palgrave Macmillan UK, 1987. http://dx.doi.org/10.1007/978-1-349-08949-9_10.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Vincent, J. D., J. Demotes-Mainard, E. Arnauld, and J. M. Israel. "Effects of Estrogens on the Electrophysiological Properties of Neurons and Adenohypophyseal Cells: Interactions with Dopamine." In Receptor-Receptor Interactions, 119–30. London: Palgrave Macmillan UK, 1987. http://dx.doi.org/10.1007/978-1-349-08949-9_11.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Cooney, Deirdre, Andreas Holzhöfer, Fritz Boege, Christian Dees, Rolf Jürss, Alan K. Keenan, Mirko Hekman, and Ernst J. M. Helmreich. "Receptor Modification and Receptor Disposition in Membranes." In Receptor-Receptor Interactions, 133–44. London: Palgrave Macmillan UK, 1987. http://dx.doi.org/10.1007/978-1-349-08949-9_12.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Berridge, M. J. "Membrane Phospholipid Metabolism and Transmitters." In Receptor-Receptor Interactions, 145–61. London: Palgrave Macmillan UK, 1987. http://dx.doi.org/10.1007/978-1-349-08949-9_13.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Changeux, J. P., J. Giraudat, M. Dennis, M. Goeldner, C. Hirth, C. Mulle, F. Révah, A. Devillers-Thiéry, and T. Heidmann. "Allosteric Sites and Conformational Transitions of the Acetylcholine Receptor: Models for Short-term Regulation of Receptor Response." In Receptor-Receptor Interactions, 162–90. London: Palgrave Macmillan UK, 1987. http://dx.doi.org/10.1007/978-1-349-08949-9_14.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Receptor"

1

Basu, Gargi D., Ariane Kemkes, Rebecca A. Feldman, David R. Arguello, Alan Wright, David Loesch, and Raheela Ashfaq. "Abstract 3152: Distribution of hormone receptors (estrogen receptor, progesterone receptor and androgen receptor) in epithelial malignancies." In Proceedings: AACR 102nd Annual Meeting 2011‐‐ Apr 2‐6, 2011; Orlando, FL. American Association for Cancer Research, 2011. http://dx.doi.org/10.1158/1538-7445.am2011-3152.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Chesla, Scott E., Bryan T. Marshall, and Cheng Zhu. "Measuring the Probability of Receptor Extraction From the Cell Membrane." In ASME 1997 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/imece1997-0262.

Full text
Abstract:
Abstract Recently, there has been an increasing interest in measuring the interaction forces between cell adhesion receptors and their ligands [1–3]. These molecules are either anchored on the membrane of a cell or coated on the surface of a substratum. The two surfaces are joined together as a result of the formation of non-covalent bonds between the receptors and ligands. The forces are measured when the two surfaces are separated. In a theoretical paper published nineteen years ago, George Bell estimated the force required to break a receptor-ligand bond and that required to uproot the receptor from the cell membrane to be of the same order of magnitude [4]. The interpretation of the force data therefore requires the knowledge of detachment mode, i.e., via adhesive mechanism if the receptor-ligand bond is dissociated or via cohesive mechanism if the receptor-membrane anchor is disrupted.
APA, Harvard, Vancouver, ISO, and other styles
3

Gavrilenkova, A. A., I. E. Deev, E. V. Bocharov, I. S. Okhrimenko, and O. V. Serova. "STUDY OF MECHANISMS OF ACTIVATION OF THE INSULIN-LIKE GROWTH FACTOR RECEPTOR (IGF-IR) USING MUTANT FORMS OF THE RECEPTOR." In X Международная конференция молодых ученых: биоинформатиков, биотехнологов, биофизиков, вирусологов и молекулярных биологов — 2023. Novosibirsk State University, 2023. http://dx.doi.org/10.25205/978-5-4437-1526-1-306.

Full text
Abstract:
At the moment, a lot of research is being conducted to study the mechanisms of activation of the insulin receptor family, but the exact mechanisms of conformational changes in receptors during activation are still being investigated. It is assumed that in the inactive state, the TM domains of the insulin receptor are in a conformation that prevents the interaction of kinase domains. Binding to the ligand changes the conformation of the receptor, as a result, intracellular tyrosine kinase domains converge and cause a cellular response.
APA, Harvard, Vancouver, ISO, and other styles
4

Brill, Michael H., Doreen W. Bergeron, and William W. Stoner. "Trichromatic retinal model with adaptive contrast sensitivity and resolution." In OSA Annual Meeting. Washington, D.C.: Optica Publishing Group, 1987. http://dx.doi.org/10.1364/oam.1987.thc4.

Full text
Abstract:
A computer-simulated retina called IRIS is described which discriminates small differences in reflected light when these differences occur in a restricted domain of space and time and maintains sensitivity to these differences for a wide range of light environments. As prevailing light levels de crease and photon noise becomes significant, IRIS automatically reduces its spatiotemporal resolution to provide greater redundancy. The temporal resolution depends on light intensity because each receptor’s response is governed by photopigment kinetics whose rate increases with light level. The spatial resolution depends on light intensity because the receptors are individual circuits (with voltage sources and photoconductors) coupled by a passive conducting grid. At high light intensity, the conductances within each receptor circuit are much greater than the lateral conductance, hence the receptor circuits are effectively uncoupled. Decreasing light intensity causes the lateral conductance to become more significant, thereby coupling the receptors and reducing spatial resolution. The simulation (implemented in FORTRAN) is adapted from the dissertation work of one of the authors.1 Simulation results are presented, and parallels to human vision are noted—including implications for trichromatic vision. The conducting grid might be achieved by tight-junction coupling of receptors and horizontal-cell interconnections that form an effective syncytium.
APA, Harvard, Vancouver, ISO, and other styles
5

Srinivasan, Visvanathan, Nayan Reddy, Adriana Brasoava, and David L. Wells. "Micro-Embossing of Polymeric Substrates for Fluidic Self-Assembly." In ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-14817.

Full text
Abstract:
Fluidic Self-Assembly™ (FSA)™ has become a routine manufacturing process in the production of radio-frequency identification tags. FSA operates through the self-positioning of micro-devices into pre-prepared matching receptor sites in a substrate. Research at North Dakota State University has focused on extending the applications of FSA well-beyond the current production routine. This pursuit requires, among other modifications, substantive extrapolation of the size, depth, configuration, spacing and spatial density of receptor sites. Three different test wafer patterns (see Figure 5 for patterns having nominal sizes of 1050μ, 1500μ, μ2150 and 3050μ square receptors with different spacing between them) took into account the corner compensation structure dimensions, which are based on thickness of silicon mold wafer feature to be etched (see Figure 2). The embossing tool (silicon wafer) was patterned photo-lithographically and subsequently wet etched in a KOH 2:1 solution. Experiments suggest shorter tool life in the case of closely packed features (spacing ~ 0.5mm). Receptor profiles evaluated using both optical and mechanical inspection (see Figures 3 and 4) suggest that features having larger size (up to nominal size of 3050μ square) and thickness (nominal depths of 110μ and 210μ) can be embossed accurately for use in FSA by slightly increasing the embossing time in case of deeper receptors. It was also noticed that the relative receptor depths attained with respect to the thickness of the feature on the mold wafer was lower while embossing deeper receptor sites, leading to the conclusion that mold wafers must be etched longer in such cases. The embossed receptor sites were subsequently filled with micro-devices in accordance with the standard operating parameters of Fluidic Self-Assembly process. These sample experimental runs suggest receptors slightly deeper than the micro-devices facilitate higher yields (or fill rates) in FSA. However, in cases where the receptors are too deep relative to the micro-device (> 5μ), air-entrapment occurred between the micro-device and the bottom of the receptor site, which caused problems in post-FSA processes due to air expansion. This paper presents comprehensive guidelines for embossing larger and deeper receptors for effective use in FSA.
APA, Harvard, Vancouver, ISO, and other styles
6

Watson, Andrew B. "Constraints on sensitivity of linear visual neurons." In OSA Annual Meeting. Washington, D.C.: Optica Publishing Group, 1988. http://dx.doi.org/10.1364/oam.1988.tuh4.

Full text
Abstract:
Many visual neurons linearly combine signals from the receptors or from other cells which themselves form linear combinations of receptor signals. In both cases, if the noise that limits cell performance is confined to the receptors, the peak sensitivity of the cell is entirely determined by the magnitude of the receptor noise and the normalized shape of the cells’ receptive field. This simple result may be used to estimate the receptor noise from the sensitivity of retinal or geniculate cells as well as to predict sensitivity of higher-order cells from that of lower-order cells. Consequences of this constraint are illustrated for actual primate geniculate and cortical cells and for model cortical cells.
APA, Harvard, Vancouver, ISO, and other styles
7

Hawiger, J. "PLATELET RECEPTOR RECOGNITION DOMAINS AND THEIR SYNTHETIC PEPTIDE ANALOGS." In XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1643726.

Full text
Abstract:
Adhesive molecules and their receptorsplay an essential role in hemostasis and thrombosis. Platelet thrombi are formed through the interaction of cell adhesion molecules (CAMs) with intercellular adhesion molecules (IAMs)and substrate adhesion molecules (SAMs). Platelet CAMs encompass membrane glycoproteins lb, lib, Ilia,and possibly la and IV, which constitutemembrane receptors for IAMs(e.g., fibrinogen) and for SAMs encompassingvon Willebrand Factor (vWF), fibronectin, vitronectin, collagen, and thrcmbospondin. Receptorfunction of platelet CAMs can be specific,i.e., only one adhesive protein among IAMs and SAMs is selected forbinding as exemplified by GPIb and vWF. Alternatively,more than one adhesive protein can interact with platelet CAMs comprising the GPIIb/IIIa complex.This common adhesive receptor mechanism switched on by thrombin, ADP, phorbol ester or ionophore A23187 is turned off by a rise in intraplatelet cyclic AMP which provides a negative control.Fibrinogen, the most abundant adhesiveprotein in plasma, interacts with platelet CAMs via receptor recognition domains on gamma and alpha chains. Pinpointing platelet receptor recognition domain to a carboxy-terminal segment of the gamma chain encompassing residues 400-411gave rise to a series of synthetic peptide analogs which do not interfere with themetabolic pathways of platelets but blockbinding of I fibrinogen to its receptors on stimulated platelets, inhibit their aggregation in vitro, and formation of a platelet thrombus in vivo. The alpha chain of human fibrinogen contains the sequenceRGD (residues 95-97 and 572-574). Synthetpeptide analogs of the RGD sequence, which constitute the "cell adhesion site" of fibronectin, also inhibit binding of 125I-fibrinogen to stimulated platelets. However, these synthetic peptides are not "specific" for fibrinogen chains because thealpha chain of human fibrinogen which hasnosequence homology with gamma 400-411 is prevented by a peptide gamma 400-411 from interaction with platelet receptors. Viceversa, the human gamma chain is blocked by tetrapeptide RGDS not expressed in the human gamma chain. Interaction of human vWF with human platelets is blocked by synthetic peptide analogs of gamma 400-411 (not present in vWF)and of RGD sequence (present in vWF).These synthetic peptides inhibite "common" receptor pathwaystimulated with ADP, thrombin, or phorbolester, but they do not interfere with binding of 125I-vWF via a "specific" pathvoy induced with ristocetin and involving GPIb.The design of synthetic peptide analogs which inhibit platelet receptors for adhesive molecules includes the following considerations: ligand specificity (is thepeptide inhibitory toward binding of one or more adhesive molecules?),cell speciicity (is the peptide specific for platelets or does it perturb the adhesive properties of other cells, e.g.,endothelium?);the hydrophilic character; protection against degradation by peptidases; and a sufficiently long half-life to achieve platelet inhibitory potency in vivo without overloading the blood with excessive amounts of peptide.This is accomplished by constructing a peptide-albumin conjugate with ahalf-life extended at least 30 times.Whenpeptides are modeled with predominantly hydrophilic or hydrophobic residues, only the hydrophilic peptide remained active to block the platelet receptor. This agreed with the general observation that sequences on adhesive molecules that are knownto interact with cellular receptors have a hydrophilic rather than a hydrophobic character. Furthermore, changing the charge of synthetic peptides toward the negative reduced the reactivity, whereas introducing additional arginine residues enhanced the reactivity toward platelet receptors. Localization of the functionally important binding domain in the flexible segment of an adhesive protein increases the likelihood that the synthetic peptide will assume the conformation mimicking such a domain in the native adhesive protein. Structure-function studies of the receptor recognition domains on adhesive molecules led to development of a new class of platelet inhibitors acting at the membranereceptors responsible for anchoring of platelets to the vessel wall and linking them to each other.
APA, Harvard, Vancouver, ISO, and other styles
8

Safronova, N. A., T. S. Kurkin, M. B. Shevtsov, A. A. Sadova, Yu A. Zagryadskaya, I. S. Okhrimenko, V. I. Borshchevskiy, and A. V. Mishin. "SAMPLE PREPARATION OF A RECEPTOR ASSOCIATED WITH MULTIPLE SCLEROSIS PATHOGENESIS FOR STRUCTURAL STUDIES USING CRYOELECTRON MICROSCOPY." In X Международная конференция молодых ученых: биоинформатиков, биотехнологов, биофизиков, вирусологов и молекулярных биологов — 2023. Novosibirsk State University, 2023. http://dx.doi.org/10.25205/978-5-4437-1526-1-370.

Full text
Abstract:
In this work, we study the GPCR class A receptor (rhodopsin-like) which is phylogenetically close to cysteinyl leukotriene and purine receptors. It is expressed in oligodendrocyte progenitor cells and regulates formation of the myelin sheath of neurons. To determine the structure of this receptor by cryoelectron microscopy, we created a stable and monomeric protein sample.
APA, Harvard, Vancouver, ISO, and other styles
9

Hood, Donald C., and David G. Birch. "Adaptation of human cone receptors: Recordings of cone a-waves." In Advances in Color Vision. Washington, D.C.: Optica Publishing Group, 1992. http://dx.doi.org/10.1364/acv.1992.fa4.

Full text
Abstract:
Boynton and Whitten1 were the first to attempt a quantitative description of the physiology of of primate cone adaptation. Using Brown's technique2 to isolate the summed receptor potential responsible for the cone a-wave of the monkey's ERG, they concluded that substantial adaptation occurred at the level of the cone receptor. The amount of adaptation and the mechanisms involved, however, are still open to debate. Here we focus on the mechanisms of adaptation of human cone receptors.
APA, Harvard, Vancouver, ISO, and other styles
10

Hood, Donald C., and David G. Birch. "The a-wave of the ERG as a quantitative measure of human receptor activity." In Noninvasive Assessment of the Visual System. Washington, D.C.: Optica Publishing Group, 1990. http://dx.doi.org/10.1364/navs.1990.mc4.

Full text
Abstract:
For over fifty years, the leading edge of the a-wave has been associated with receptor activity1. Uncertainty remains, however, about the answers to two basic questions: First, to what extent does the a-wave reflect receptor activity? For example, can we assume that the amplitude of the a-wave is linearly related to the size of the receptor's response? And, second, can we associate specific defects in receptor function with alterations in the leading edge of the a-wave? We are addressing these questions by comparing the leading edge of the rod a-wave to models of the rod receptor2,3.
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Receptor"

1

Rafaeli, Ada, and Russell Jurenka. Molecular Characterization of PBAN G-protein Coupled Receptors in Moth Pest Species: Design of Antagonists. United States Department of Agriculture, December 2012. http://dx.doi.org/10.32747/2012.7593390.bard.

Full text
Abstract:
The proposed research was directed at determining the activation/binding domains and gene regulation of the PBAN-R’s thereby providing information for the design and screening of potential PBAN-R-blockers and to indicate possible ways of preventing the process from proceeding to its completion. Our specific aims included: (1) The identification of the PBAN-R binding domain by a combination of: (a) in silico modeling studies for identifying specific amino-acid side chains that are likely to be involved in binding PBAN with the receptor and; (b) bioassays to verify the modeling studies using mutant receptors, cell lines and pheromone glands (at tissue and organism levels) against selected, designed compounds to confirm if compounds are agonists or antagonists. (2) The elucidation ofthemolecular regulationmechanisms of PBAN-R by:(a) age-dependence of gene expression; (b) the effect of hormones and; (c) PBAN-R characterization in male hair-pencil complexes. Background to the topic Insects have several closely related G protein-coupled receptors (GPCRs) belonging to the pyrokinin/PBAN family, one with the ligand pheromone biosynthesis activating neuropeptide or pyrokinin-2 and another with diapause hormone or pyrokinin-1 as a ligand. We were unable to identify the diapause hormone receptor from Helicoverpa zea despite considerable effort. A third, related receptor is activated by a product of the capa gene, periviscerokinins. The pyrokinin/PBAN family of GPCRs and their ligands has been identified in various insects, such as Drosophila, several moth species, mosquitoes, Triboliumcastaneum, Apis mellifera, Nasoniavitripennis, and Acyrthosiphon pisum. Physiological functions of pyrokinin peptides include muscle contraction, whereas PBAN regulates pheromone production in moths plus other functions indicating the pleiotropic nature of these ligands. Based on the alignment of annotated genomic sequences, the primary and secondary structures of the pyrokinin/PBAN family of receptors have similarity with the corresponding structures of the capa or periviscerokinin receptors of insects and the neuromedin U receptors found in vertebrates. Major conclusions, solutions, achievements Evolutionary trace analysisof receptor extracellular domains exhibited several class-specific amino acid residues, which could indicate putative domains for activation of these receptors by ligand recognition and binding. Through site-directed point mutations, the 3rd extracellular domain of PBAN-R was shown to be critical for ligand selection. We identified three receptors that belong to the PBAN family of GPCRs and a partial sequence for the periviscerokinin receptor from the European corn borer, Ostrinianubilalis. Functional expression studies confirmed that only the C-variant of the PBAN-R is active. We identified a non-peptide agonist that will activate the PBAN-receptor from H. zea. We determined that there is transcriptional control of the PBAN-R in two moth species during the development of the pupa to adult, and we demonstrated that this transcriptional regulation is independent of juvenile hormone biosynthesis. This transcriptional control also occurs in male hair-pencil gland complexes of both moth species indicating a regulatory role for PBAN in males. Ultimate confirmation for PBAN's function in the male tissue was revealed through knockdown of the PBAN-R using RNAi-mediated gene-silencing. Implications, both scientific and agricultural The identification of a non-peptide agonist can be exploited in the future for the design of additional compounds that will activate the receptor and to elucidate the binding properties of this receptor. The increase in expression levels of the PBAN-R transcript was delineated to occur at a critical period of 5 hours post-eclosion and its regulation can now be studied. The mysterious role of PBAN in the males was elucidated by using a combination of physiological, biochemical and molecular genetics techniques.
APA, Harvard, Vancouver, ISO, and other styles
2

Safe, Stephen H. Inhibitory Ah Receptor - Androgen Receptor Crosstalk in Prostate Cancer. Fort Belvoir, VA: Defense Technical Information Center, February 2004. http://dx.doi.org/10.21236/ada423669.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Holaday, John W. Opiate Receptor Subtypes. Fort Belvoir, VA: Defense Technical Information Center, March 1985. http://dx.doi.org/10.21236/ada165206.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Cohen, Saul G. Acetylcholinesterase and Acetylcholine Receptor. Fort Belvoir, VA: Defense Technical Information Center, January 1992. http://dx.doi.org/10.21236/ada255623.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Cohen, Saul G. Acetylcholinesterase and Acetylcholine Receptor. Fort Belvoir, VA: Defense Technical Information Center, January 1985. http://dx.doi.org/10.21236/adb112772.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Rafaeli, Ada, Russell Jurenka, and Chris Sander. Molecular characterisation of PBAN-receptors: a basis for the development and screening of antagonists against Pheromone biosynthesis in moth pest species. United States Department of Agriculture, January 2008. http://dx.doi.org/10.32747/2008.7695862.bard.

Full text
Abstract:
The original objectives of the approved proposal included: (a) The determination of species- and tissue-specificity of the PBAN-R; (b) the elucidation of the role of juvenile hormone in gene regulation of the PBAN-R; (c) the identificationof the ligand binding domains in the PBAN-R and (d) the development of efficient screening assays in order to screen potential antagonists that will block the PBAN-R. Background to the topic: Moths constitute one of the major groups of pest insects in agriculture and their reproductive behavior is dependent on chemical communication. Sex-pheromone blends are utilised by a variety of moth species to attract conspecific mates. In most of the moth species sex-pheromone biosynthesis is under circadian control by the neurohormone, PBAN (pheromone-biosynthesis-activating neuropeptide). In order to devise ideal strategies for mating disruption/prevention, we proposed to study the interactions between PBAN and its membrane-bound receptor in order to devise potential antagonists. Major conclusions: Within the framework of the planned objectives we have confirmed the similarities between the two Helicoverpa species: armigera and zea. Receptor sequences of the two Helicoverpa spp. are 98% identical with most changes taking place in the C-terminal. Our findings indicate that PBAN or PBAN-like receptors are also present in the neural tissues and may represent a neurotransmitter-like function for PBAN-like peptides. Surprisingly the gene encoding the PBAN-receptor was also present in the male homologous tissue, but it is absent at the protein level. The presence of the receptor (at the gene- and protein-levels), and the subsequent pheromonotropic activity are age-dependent and up-regulated by Juvenile Hormone in pharate females but down-regulated by Juvenile Hormone in adult females. Lower levels of pheromonotropic activity were observed when challenged with pyrokinin-like peptides than with HezPBAN as ligand. A model of the 3D structure of the receptor was created using the X-ray structure of rhodopsin as a template after sequence alignment of the HezPBAN-R with several other GPCRs and computer simulated docking with the model predicted putative binding sites. Using in silico mutagenesis the predicted docking model was validated with experimental data obtained from expressed chimera receptors in Sf9 cells created by exchanging between the three extracellular loops of the HezPBAN-R and the Drosophila Pyrokinin-R (CG9918). The chimera receptors also indicated that the 3ʳᵈ extracellular loop is important for recognition of PBAN or Diapause hormone ligands. Implications: The project has successfully completed all the objectives and we are now in a position to be able to design and screen potential antagonists for pheromone production. The successful docking simulation-experiments encourage the use of in silico experiments for initial (high-throughput) screening of potential antagonists. However, the differential responses between the expressed receptor (Sf9 cells) and the endogenous receptor (pheromone glands) emphasize the importance of assaying lead compounds using several alternative bioassays (at the cellular, tissue and organism levels). The surprising discovery of the presence of the gene encoding the PBAN-R in the male homologous tissue, but its absence at the protein level, launches opportunities for studying molecular regulation pathways and the evolution of these GPCRs. Overall this research will advance research towards the goal of finding antagonists for this important class of receptors that might encompass a variety of essential insect functions.
APA, Harvard, Vancouver, ISO, and other styles
7

DiRenzo, James. Inhibition of Estrogen Receptor Action by the Orphan Receptors, SHP and DAX-1. Fort Belvoir, VA: Defense Technical Information Center, September 2001. http://dx.doi.org/10.21236/ada403608.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

DiRenzo, James. Inhibition of Estrogen Receptor Action by the Orphan Receptors, SHP and DAX-1. Fort Belvoir, VA: Defense Technical Information Center, September 2002. http://dx.doi.org/10.21236/ada412765.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

DiRenzo, James. Inhibition of Estrogen Receptor Action by the Orphan Receptors, SHP and DAX-1. Fort Belvoir, VA: Defense Technical Information Center, December 2003. http://dx.doi.org/10.21236/ada419517.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Direnzo, James. Inhibition of Estrogen Receptor Action by the Orphan Receptors, SHP and DAX-1. Fort Belvoir, VA: Defense Technical Information Center, September 2000. http://dx.doi.org/10.21236/ada393316.

Full text
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography