Добірка наукової літератури з теми "Competence pilus"
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Статті в журналах з теми "Competence pilus"
Friedrich, Alexandra, Christina Prust, Thomas Hartsch, Anke Henne, and Beate Averhoff. "Molecular Analyses of the Natural Transformation Machinery and Identification of Pilus Structures in the Extremely Thermophilic Bacterium Thermus thermophilus Strain HB27." Applied and Environmental Microbiology 68, no. 2 (February 2002): 745–55. http://dx.doi.org/10.1128/aem.68.2.745-755.2002.
Повний текст джерелаLong, Cynthia D., Deborah M. Tobiason, Matthew P. Lazio, Kimberly A. Kline, and H. Steven Seifert. "Low-Level Pilin Expression Allows for Substantial DNA Transformation Competence in Neisseria gonorrhoeae." Infection and Immunity 71, no. 11 (November 2003): 6279–91. http://dx.doi.org/10.1128/iai.71.11.6279-6291.2003.
Повний текст джерелаGraupner, Stefan, Nicole Weger, Monika Sohni, and Wilfried Wackernagel. "Requirement of Novel Competence Genes pilT andpilU of Pseudomonas stutzeri for Natural Transformation and Suppression of pilT Deficiency by a Hexahistidine Tag on the Type IV Pilus Protein PilAI." Journal of Bacteriology 183, no. 16 (August 15, 2001): 4694–701. http://dx.doi.org/10.1128/jb.183.16.4694-4701.2001.
Повний текст джерелаFriedrich, Alexandra, Judit Rumszauer, Anke Henne, and Beate Averhoff. "Pilin-Like Proteins in the Extremely Thermophilic Bacterium Thermus thermophilus HB27: Implication in Competence for Natural Transformation and Links to Type IV Pilus Biogenesis." Applied and Environmental Microbiology 69, no. 7 (July 2003): 3695–700. http://dx.doi.org/10.1128/aem.69.7.3695-3700.2003.
Повний текст джерелаFussenegger, Martin, Thomas Rudel, Roland Barten, Roland Ryll, and Thomas F. Meyer. "Transformation competence and type-4 pilus biogenesis in Neisseriagonorrhoeae – areview." Gene 192, no. 1 (June 1997): 125–34. http://dx.doi.org/10.1016/s0378-1119(97)00038-3.
Повний текст джерелаMuschiol, Sandra, Simon Erlendsson, Marie-Stephanie Aschtgen, Vitor Oliveira, Peter Schmieder, Casper de Lichtenberg, Kaare Teilum, Thomas Boesen, Umit Akbey, and Birgitta Henriques-Normark. "Structure of the competence pilus major pilin ComGC inStreptococcus pneumoniae." Journal of Biological Chemistry 292, no. 34 (June 28, 2017): 14134–46. http://dx.doi.org/10.1074/jbc.m117.787671.
Повний текст джерелаDubnau, David, and Melanie Blokesch. "Mechanisms of DNA Uptake by Naturally Competent Bacteria." Annual Review of Genetics 53, no. 1 (December 3, 2019): 217–37. http://dx.doi.org/10.1146/annurev-genet-112618-043641.
Повний текст джерелаVillar, Maria T., Rona L. Hirschberg, and Michael R. Schaefer. "Role of the Eikenella corrodens pilALocus in Pilus Function and Phase Variation." Journal of Bacteriology 183, no. 1 (January 1, 2001): 55–62. http://dx.doi.org/10.1128/jb.183.1.55-62.2001.
Повний текст джерелаLång, Emma, Kristine Haugen, Burkhard Fleckenstein, Håvard Homberset, Stephan A. Frye, Ole Herman Ambur, and Tone Tønjum. "Identification of neisserial DNA binding components." Microbiology 155, no. 3 (March 1, 2009): 852–62. http://dx.doi.org/10.1099/mic.0.022640-0.
Повний текст джерелаLaurenceau, Raphaël, Petya V. Krasteva, Amy Diallo, Sahra Ouarti, Magalie Duchateau, Christian Malosse, Julia Chamot-Rooke, and Rémi Fronzes. "Conserved Streptococcus pneumoniae Spirosomes Suggest a Single Type of Transformation Pilus in Competence." PLOS Pathogens 11, no. 4 (April 15, 2015): e1004835. http://dx.doi.org/10.1371/journal.ppat.1004835.
Повний текст джерелаДисертації з теми "Competence pilus"
Luna-Rico, Areli-Noemi. "Enterobacterial type IV pili : structure, assembly and molecular function." Thesis, Sorbonne Paris Cité, 2018. https://theses.md.univ-paris-diderot.fr/LUNARICO_Areli_4_va_20180629.pdf.
Повний текст джерелаMany bacterial species display surface fibers to interact with the surrounding environment. Type 4 pili (T4P) are long and thin, flexible fibers involved in a variety of functions including adherence, motility, secretion, DNA uptake and biofilm formation. They are composed of thousands of copies of major pilin subunits and are assembled by a protein complex localized in the bacterial envelope. In this study we focused on the T4P from Enterohemorrhagic Escherichia coli (EHEC) serotype O157:H7. EHEC is a human foodborne pathogen that causes outbreaks of bloody diarrhea and hemolytic uremic syndrome (HUS), which can lead to a lethal outcome. EHEC T4P is composed of the major subunit PpdD and presumably in lower abundance by minor pilins PpdA, PpdB, YgdB and PpdC.This study has aimed to describe the structure of the T4P from EHEC, a representative of pili conserved in enterobacteria. Structural information provides insights that can relate to the mode of action of these organelles. In this project we addressed the structure of the EHEC T4P and the molecular basis of their assembly. Due to the flexible and non-covalent nature of T4P fibers we used an integrative approach to combine information obtained by cryo-electron microscopy, NMR spectroscopy, molecular modeling and biochemical analyses to obtain a high quality structure of the EHEC T4P. In addition, from functional, interaction and mutational analysis we gained insights into the molecular interactions between the pilin subunits present in the fiber. The T4P are poorly studied in enterobacterial systems; despite the presence of all the necessary genes, the conditions that trigger their expression in E. coli are unknown. In addition, in E. coli the T4P-related genes are coregulated with genes encoding the DNA uptake machinery, suggesting their role in natural competence. In order to facilitate the study of T4P, we achieved a functional reconstitution of the EHEC T4PS in the non-pathogenic E. coli K-12 through the controlled expression of the T4P genes cloned together as a single artificial operon. With this accomplishment we were able to perform comparative analyses between pili assembled by a heterologous system (the Type 2 secretion system from another enterobacterium, Klebsiella oxytoca) and by the cognate EHEC T4P assembly system. CryoEM analysis showed that these pili are identical, indicating that major pilins are the key determinants of fiber structure and symmetry. The results also led us to obtain important insights into pilus assembly and to characterize PpdD interactions with the assembly machinery. These interactions and PpdD dimerization were required for pilin stability prior to pilus assembly, highlighting important early steps involving targeting of subunits to the assembly machinery. Together, these results lay the foundations for future structural and functional studies of enterobacterial T4P
Almqvist, Curt. "Improvement of flowering competence and capacity with reference to Swedish conifer breeding /." Uppsala : Swedish Univ. of Agricultural Sciences (Sveriges lantbruksuniv.), 2001. http://epsilon.slu.se/avh/2001/91-576-6302-5.pdf.
Повний текст джерелаWeaver, Sara Jean. "Visualizing Small Proteins with the cryoEM Platform and The Structure of the Vibrio cholerae Type IV Competence Pilus Secretin PilQ." Thesis, 2020. https://thesis.library.caltech.edu/13601/31/20190315_SMovie1.mp4.
Повний текст джерелаSolving protein structures by single-particle cryoelectron microscopy (cryo-EM) has become a crucial tool in structural biology. While exciting progress is being made toward the visualization of small macromolecules, the median protein size in both eukaryotes and bacteria is still beyond the reach of cryo-EM. To overcome this problem, we implemented a platform strategy in which a small protein target was rigidly attached to a large, symmetric base via a selectable adapter. Of our seven designs, the best construct used a designed ankyrin repeat protein (DARPin) rigidly fused to tetrameric rabbit muscle aldolase through a helical linker. The DARPin retained its ability to bind its target: GFP. We solved the structure of this complex to 3.0 Å resolution overall, with 5-8 Å resolution in the GFP region. As flexibility in the DARPin position limited the overall resolution of the target, we describe strategies to rigidify this element.
Natural competence is the process by which bacteria take up genetic material from their environment and integrate it into their genome using homologous recombination. In Vibrio cholerae, the Type IV competence pilus is thought to mediate DNA uptake by binding DNA and retracting back toward the cell. How the DNA enters the periplasm is unclear. One hypothesis suggests that the DNA-bound Type IV competence pilus retracts completely so that the DNA would pass through the outer membrane secretin pore (PilQ). PilQ is a 870 kDa outer membrane pore with C14 symmetry. Here, we purify the V. cholerae PilQ secretin from V. cholerae cells in amphipols for single particle cryogenic electron microscopy (cryoEM). We solve the structure to 3.0 Å and provide insight on the channel DNA may traverse through during uptake.
Книги з теми "Competence pilus"
Maza Ríos, José Eugenio de la. A state space stand model for Pinus radiata in Chile. INFOR, 1991. http://dx.doi.org/10.52904/20.500.12220/1386.
Повний текст джерелаSmith, Nigel. Grace Abounding to the Chief of Sinners (1666). Edited by Michael Davies and W. R. Owens. Oxford University Press, 2018. http://dx.doi.org/10.1093/oxfordhb/9780199581306.013.10.
Повний текст джерелаIbrahim, Celene. Women and Gender in the Qur'an. Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780190063818.001.0001.
Повний текст джерелаТези доповідей конференцій з теми "Competence pilus"
Sánchez, Raquel, Adriana Polo, Andrea López, Santiago Martínez, Arantzazu Valdés, and José Luis Todolí. "TRAINING PILLS TO IMPROVE ANALYTICAL CHEMISTRY LABORATORY COMPETENCES IN NUTRITION AND FOOD MASTER’S DEGREE." In 14th International Conference on Education and New Learning Technologies. IATED, 2022. http://dx.doi.org/10.21125/edulearn.2022.1287.
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