Dissertations / Theses on the topic 'Tryptophol'
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Lara, Maria Cristina Figueiredo Lima e. "Estudos das interações do íon Cu2+ com os dipeptídeos glicil-triptofano e triptofil-glicina." Universidade de São Paulo, 1993. http://www.teses.usp.br/teses/disponiveis/54/54132/tde-25022014-114118/.
Full textIn this work we studied two dipeptide-copper complexes, being Triptofil-Glycine (Trp-Gly) and Glycil-Triptophan (Gly-Trp). We focused our interest on the interaction with the transition metal, conformational changes and the role that the heavy residue of the Triptophan plays in the symmetry of the complex. Moreover we explain the unusual spectroscopic properties that we observed with Gly-Trp: Cu+2 in high pH solutions similar to that of the so called blue proteins. For these purposes we used such complementary techniques as EPR, Circular Diochrism and Optical Absorption Spectroscopy. Based on our experimental results we proposed two models for the complexes and their wave functions. For the TRP-Gly: Cu+2 in pH of 9.1 and 13.2 and for Gly-Trp: Cu+2 with pH=9.1, we use a model which we call covalent. It consists basically of the consideration that the electronic orbital of the ion Cu+2 and its ligands are in square planar symmetry and that each of the four ligand atoms, in our case two oxygen and two nitrogen atoms, has available 2s, 2px, 2py, 2pz for the formation of molecular orbital with the copper 3d orbital. The wave functions thus constructed depend on coefficients (parameters) that give information on the degree of the covalent character of the bond (complex). The method is semi-empirical. The theoretical expressions for the EPR parameters depend on these coefficients and the transition energies obtained by absorption spectroscopy (in the visible). With the experimental values of the g and A tensors we can therefore obtain numerical values for the covalent coefficients. For the complex Gly-Trp: Cu+2 with pH=13.2 we proposed a model of mixing orbital, a non covalent model that consists of the assumption that the wave functions of the excited states 4s and 4p of the copper mix with the 3d orbital of the same ion. With this model it was possible to explain the uncommon spectroscopic properties that are similar to these of the blue proteins. Knowing the experimental values of the components of the tensors g and A, the oscillator strength obtained by the optical spectra, the rotational strength obtained by the CD spectra and the eigen-functions compatible with the model, we numerically determined the coefficients of hybridization. The experimental parameters were determined by spectral simulations using programs that we developed especially (specifically) for this purpose. Trough this work it was possible to verify the influence of Triptophan on the stereochemistry (stereo chemical behavior) of the formed complexes, on symmetry changes, covalent character and up to which point the properties of the dipeptide Gly-Trp: Cu+2 in high pH are similar to that of the blue protein
Fu, Rong. "Biochemical and Spectroscopic Characterization of Tryptophan Oxygenation: Tryptophan 2, 3-Dioxygenase and Maug." Digital Archive @ GSU, 2009. http://digitalarchive.gsu.edu/chemistry_diss/44.
Full textWalsh, Harold Archibold. "Regulation of tryptophan-2,3-dioxygenase and pineal indoleamines by selected tryptophan derivatives and antidepressants." Thesis, Rhodes University, 1997. http://hdl.handle.net/10962/d1004077.
Full textBrnardic, Edward Joseph. "Synthesis of aza-tryptophan derivatives." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape10/PQDD_0013/MQ52518.pdf.
Full textSchaechter, Judith Diane. "Tryptophan availability modulates serotonin release." Thesis, Massachusetts Institute of Technology, 1989. http://hdl.handle.net/1721.1/13995.
Full textTsimpos, Kleomenis. "Τοwards a Synthetic Tryptophan Aminotransferase." Thesis, Linnéuniversitetet, Institutionen för kemi och biomedicin (KOB), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-97548.
Full textMirzaei, Hamid. "Synthesis of tryptophan amides and lavendamycin analogs." Virtual Press, 2001. http://liblink.bsu.edu/uhtbin/catkey/1221298.
Full textDepartment of Chemistry
Bergqvist, Peter B. F. "Tryptophan-related neurotransmission in the brain disturbances associated with experimental hepatic encephalopathy /." Lund : Dept. of Clinical Pharmacology, Institute of Labortaory Medicine, Lund University Hospital, 1997. http://catalog.hathitrust.org/api/volumes/oclc/39761954.html.
Full textMüller, Burkhardt. "Synthese, Analytik und Bildungsbedingungen von Kontaminanten in biotechnologisch hergestelltem Tryptophan." [S.l. : s.n.], 1999. http://deposit.ddb.de/cgi-bin/dokserv?idn=957463723.
Full textSolle, Dörte. "Analyse und Optimierung eines industriellen Biotransformationsprozesses zur Herstellung von Tryptophan." [S.l. : s.n.], 2003. http://deposit.ddb.de/cgi-bin/dokserv?idn=969294492.
Full textBae, Jae Hyun. "Studies on tryptophan analogues in proteins." [S.l.] : [s.n.], 2002. http://deposit.ddb.de/cgi-bin/dokserv?idn=966131681.
Full textRemes, Lenicov Federico. "Transcriptional regulation of tryptophan hydroxylase-2." Thesis, University of Ottawa (Canada), 2006. http://hdl.handle.net/10393/27413.
Full textParmar, Anil. "Model chemistry of tryptophan tryptophylquinone cofactor." Thesis, University of Leicester, 2010. http://hdl.handle.net/2381/7958.
Full textJiang, George Chih-Thai. "Structure and function of tryptophan hydroxylase /." Connect to electronic thesis, 2003. http://dspace.zsr.wfu.edu/jspui/handle/10339/192.
Full textKent E. Vrana, advisor. Includes curriculum vita. Includes bibliographical references.
Jusof, Felicita Fedelis. "Tryptophan-catabolising enzymes in animal models." Thesis, The University of Sydney, 2015. http://hdl.handle.net/2123/13697.
Full textMarshall, Eve. "Biomimetic approaches to tryptophan-derived alkaloids." Thesis, University of Nottingham, 2017. http://eprints.nottingham.ac.uk/41344/.
Full textCowan, Peter J. "Controlled production of tryptophan by genetically-manipulated strains of Escherichia coli." Connect to thesis, 1992. http://repository.unimelb.edu.au/10187/1020.
Full textDuring prolonged cultivation in the presence of antibiotic, the recombinant strain generated faster-growing, production-defective variants, which harboure mutated derivatives of pMU78. Insertion sequences were responsible for the two predominant types of mutation. The plasmid element ISI02 mediated deletions extending into the promoter-proximal region of the plasmid-borne trp operon. ISI0-Right, a chromosomal element, inserted into the promoter/trpE region of the plasmid. Three methods were employed to increase the structural stability of JP4153(pMU78) during the course of the production process. First, the growth of seed cultures was carried out at 30 degrees C, the permissive temperature for the trpS378 mutation carried by the host strain. Second, the seed culture medium was modified by the addition of yeast extract, which appeared to reduce the selective disadvantage conferred by the plasmid. Third, ISI02was deleted from pMU78 to create pMU88. (For complete abstract open document)
Tanda, Sindiswa Eunice. "The effect of 6-Methoxy-2-Benzoxazolinone (6-MBOA) on indoleamine regulation and its possible role in depression." Thesis, Rhodes University, 2000. http://hdl.handle.net/10962/d1003971.
Full textErnyei, Aliz Judit [Verfasser]. "Untersuchungen zur Substratspezifität der Tryptophan-5- und der Tryptophan-6-Halogenase und Optimierung der Reaktionen / Aliz Judit Ernyei." München : Verlag Dr. Hut, 2014. http://d-nb.info/104799500X/34.
Full textMaitland, Smith Kevin Charles. "Tryptophan metabolism during reproduction in the rat." Thesis, King's College London (University of London), 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.243546.
Full textBooth, Elizabeth Suzanne. "Tryptophan oxidation by the heme-containing dioxygenases." Thesis, University of Leicester, 2016. http://hdl.handle.net/2381/37091.
Full textVarvel, Hallie Johnson. "Tryptophan Supplementation During Lactation on Sow Productivity." OpenSIUC, 2019. https://opensiuc.lib.siu.edu/theses/2551.
Full textBoshra, Mohamed [Verfasser]. "Experimente zum proteomweiten Austausch von L-Tryptophan in Escherichia coli gegen 4-Aza- und 4-Fluor-Tryptophan / Mohamed Boshra." Berlin : Freie Universität Berlin, 2018. http://d-nb.info/1155167198/34.
Full textAntunes, Ana Paula Martins. "An investigation into the antioxidative potential and regulatory aspects of liver tryptophan 2,3-dioxygenase by tryptophan and related analogues." Thesis, Rhodes University, 1998. http://hdl.handle.net/10962/d1004070.
Full textDeFelippis, Michael Rosario. "The redox potentials of the tyrosine and tryptophan radicals and long-range electron transfer between tyrosine and tryptophan in peptides /." The Ohio State University, 1990. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487678444257431.
Full textSalimi, Elizei Sanam. "Anti-inflammatory role of IDO and tryptophan metabolites." Thesis, University of British Columbia, 2016. http://hdl.handle.net/2429/59120.
Full textMedicine, Faculty of
Graduate
Davis, Kevin. "An analysis of models of the tryptophan operon." Thesis, McGill University, 2008. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=19269.
Full textBien que l'opéron de tryptophane ait fait l'objet d'un nombre d'essais expérimentaux considérables dans les dernières décennies, les e?orts dans la modélisation ont été rel- ativement peu et disparates quant à leurs conclusions concernant le comportement de l'opéron. Nous considérons un choix de modèles existants de l'opéron de tryptophane et les analysons des points de vue de leur stabilité, de leur réponse aux signaux périodiques en biochimie, et de l'existence d'attractions de variétés invariantes dans l'espace d'états du modèle. Nous constatons que les propriétés de stabilité de ces modèles peuvent dépendre considérablement de petits changements des paramètres qui sont en accord avec des données expérimentales mises à jour. De plus, nous montrons la capacité de l'opéron de tryptophane à agir comme ?ltre passe-bande classique aux ?uctuations périodiques en apparence provoquées par la nature périodique du cycle cellulaire. En conclusion, une technique fonctionnelle d'itération pour le calcul approximatif de l'attraction de variété invariante est présentée et la variété pour un des modèles est calculée. fr
Wise, William Robert. "Synthetic chemistry for tryptophan tryptophylquinone like enzyme cofactors." Thesis, University of Leicester, 2011. http://hdl.handle.net/2381/10072.
Full textHaule, Ambrose Francis. "Design of tryptophan analogues as novel tryptanocidal drugs." Thesis, University of Sunderland, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.277923.
Full textSwift, Simon. "Tryptophan synthase : a model for protein/protein interaction." Thesis, University of Nottingham, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.303962.
Full textThackray, Sarah J. "Enzymatic and mechanistic studies into tryptophan 2,3-dioxygenase." Thesis, University of Edinburgh, 2009. http://hdl.handle.net/1842/11458.
Full textZholudov, Yu, N. Lysak, and G. Xu. "Electrochemiluminescence in Tryptophan / Tetraphenylborate System for Biosamples Assay." Thesis, ISBC, 2018. http://openarchive.nure.ua/handle/document/5793.
Full textZhang, Luyuan. "Ultrafast Protein Hydration Dynamics Probed by Intrinsic Tryptophan." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1276524825.
Full textUmmadi, Madhavi. "Tryptophan Catabolism in Brevibacterium linens BL2." DigitalCommons@USU, 2002. https://digitalcommons.usu.edu/etd/5501.
Full textFrith, Kelly-Anne. "Polymers, catalysts and nanostructures a hybrid approach to biomolecule detection." Thesis, Rhodes University, 2009. http://hdl.handle.net/10962/d1004039.
Full textMcElroy, Craig Alan. "Dynamics and function mechanistic studies of the gene regulatory proteins TRAP and anti-TRAP /." Connect to this title online, 2005. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1111429539.
Full textTitle from first page of PDF file. Document formatted into pages; contains xv, 327 p.; also includes graphics (some col.) Includes bibliographical references (p. 315-327). Available online via OhioLINK's ETD Center
Toyn, Jeremy H. "The selection and study of mutants of the yeast Saccharomyces cerevisiae that are defective for translocation of proteins into the endoplasmic reticulum." Thesis, Open University, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.327843.
Full textLysek, Nicola. "Tryptophan-Abkömmlinge in wirbellosen Meerestieren Isolierung, Struktur und Funktion /." [S.l.] : [s.n.], 2002. http://deposit.ddb.de/cgi-bin/dokserv?idn=965429881.
Full textTusell, Jose Ramon. "Computation of tryptophan fluorescence quenching by amide and histidine." Diss., Montana State University, 2011. http://etd.lib.montana.edu/etd/2011/tusell/TusellJ1211.pdf.
Full textPhillips, Susan R. "Spectroscopic investigation of tryptophan microenvironments in bovine lens proteins." Diss., Georgia Institute of Technology, 1986. http://hdl.handle.net/1853/32973.
Full textRegoli, Martine. "Acute tryptophan depletion in heavy 3,4-methylenedioxymethamphetamine (MDMAecstasy) users." Thesis, McGill University, 2004. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=80860.
Full textZholudov, Yu. "Electrogenerated chemiluminescence in tryptophan / tetraphenylborate system for biosamples assay." Thesis, КрНУ, 2018. http://openarchive.nure.ua/handle/document/7523.
Full textWohlgamuth-Benedum, Jessica M. "MODIFICATION AND EDITING IN MITOCHONDRIAL TRYPTOPHAN tRNA OF TRYPANOSOMES." The Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1245097409.
Full textQuiel, Juan Antonio. "The tryptophan biosynthetic pathway in Arabidopsis and its regulation." Available to US Hopkins community, 2002. http://wwwlib.umi.com/dissertations/dlnow/3068200.
Full textSmolen, Gromoslaw A. "Regulation of the tryptophan biosynthetic pathway in Arabidopsis thaliana." Available to US Hopkins community, 2002. http://wwwlib.umi.com/dissertations/dlnow/3068214.
Full textMichelke, Lydia [Verfasser], Andreas [Gutachter] Deußen, and Georg [Gutachter] Breier. "Untersuchungen zur ACE-Hemmung von tryptophan- und tyrosinhaltigen Peptidmixen sowie zur biotechnologischen Herstellung von Isoleucin-Tryptophan / Lydia Michelke ; Gutachter: Andreas Deußen, Georg Breier." Dresden : Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2018. http://d-nb.info/1227196490/34.
Full textHibbard, Lisa B. "UV radiation-induced photochemical damage of tryptophan in peptides, proteins and ocular lenses." Diss., Georgia Institute of Technology, 1985. http://hdl.handle.net/1853/30089.
Full textKad, Neil M. "Probing the functional and conformational dynamics of the chaperonins GroEL and GroES." Thesis, University of Bristol, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.265326.
Full textDacko, Christopher Andrew. "The synthesis of tryptophan derivatives, 2- and/or 3-substituted indoles, progress toward dilemmaones A-C, and synthetic studies towards fistulosin via palladium-catalyzed reductive N-heteroannulation." Morgantown, W. Va. : [West Virginia University Libraries], 2009. http://hdl.handle.net/10450/10403.
Full textTitle from document title page. Document formatted into pages; contains xxvi, 324 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 186-198).
Zacherl, Maria. "Die Untersuchung der Serotoninmangelhypothese bei Fibromyalgie mittels Tryptophan-Depletions-Test." Diss., lmu, 2005. http://nbn-resolving.de/urn:nbn:de:bvb:19-38858.
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