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Genomes and Genes | E E WyckoffSummaryAffiliation: University of Texas Country: USA Publications
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Publications
HutZ is required for efficient heme utilization in Vibrio choleraeElizabeth E Wyckoff
Section of Molecular Genetics and Microbiology, The University of Texas at Austin, Austin, Texas 78712 0162, USA
J Bacteriol 186:4142-51. 2004..HutZ may act as a heme storage protein, and it may also function as a shuttle protein that increases the efficiency of heme trafficking from the membrane to heme-containing proteins...- Shigella dysenteriae ShuS promotes utilization of heme as an iron source and protects against heme toxicityElizabeth E Wyckoff
The University of Texas, Section of Molecular Genetics and Microbiology, 1 University Station A5000, Austin, TX 78712 0162, USA
J Bacteriol 187:5658-64. 2005..ShuS did not appear to store heme for future use... - Characterization of ferric and ferrous iron transport systems in Vibrio choleraeElizabeth E Wyckoff
University of Texas, Section of Molecular Genetics and Microbiology, 1 University Station A5000, Austin, TX 78712 0162, USA
J Bacteriol 188:6515-23. 2006..However, a mutant defective in the vibriobactin, Fbp, and Feo systems was not attenuated in a suckling mouse model, suggesting that at least one other iron transport system can be used in vivo... 
Iron acquisition in Vibrio choleraeElizabeth E Wyckoff
Section of Molecular Genetics and Microbiology, University of Texas at Austin, 1 University Station A5000, Austin, TX 78712, USA
Biometals 20:405-16. 2007..The redundancy in iron transport systems has made it more difficult to determine the role of individual systems in vivo and in vitro, but it may reflect the overall importance of iron in the growth and survival of V. cholerae...- A multifunctional ATP-binding cassette transporter system from Vibrio cholerae transports vibriobactin and enterobactinE E Wyckoff
Department of Molecular Genetics and Microbiology, and Institute for Cellular and Molecular Biology, University of Texas, Austin, Texas 78712 1095, USA
J Bacteriol 181:7588-96. 1999..These mutations reduced, but did not completely eliminate, vibriobactin utilization. This suggests that V. cholerae contains genes in addition to viuPDGC that function in the transport of catechol siderophores... - Structure of the Shigella dysenteriae haem transport locus and its phylogenetic distribution in enteric bacteriaE E Wyckoff
Department of Microbiology and the Institute for Cellular and Molecular Biology, University of Texas, Austin 78712, USA
Mol Microbiol 28:1139-52. 1998..dysenteriae, indicating that, in these strains, the haem transport locus has an organization similar to that in S. dysenteriae, and it is located in the same relative position on the chromosome... - The Vibrio cholerae VctPDGC system transports catechol siderophores and a siderophore-free iron ligandElizabeth E Wyckoff
Section of Molecular Genetics and Microbiology and Institute of Cellular and Molecular Biology, The University of Texas, Austin, TX 78712, USA
Mol Microbiol 81:1446-58. 2011..We also show that VctPDGC is the previously unidentified siderophore-independent iron transporter in V. cholerae, and this appears to complete the list of iron transport systems in V. cholerae... - Vibrio cholerae iron transport: haem transport genes are linked to one of two sets of tonB, exbB, exbD genesD A Occhino
Department of Microbiology and Institute for Cellular and Molecular Biology, University of Texas, Austin 78712, USA
Mol Microbiol 29:1493-507. 1998..cholerae haem transport system in E. coli. In V. cholerae, the presence of hutBCD stimulated growth when haemin was the iron source, but these genes were not essential for haemin utilization in V. cholerae... - Cloning of a Vibrio cholerae vibriobactin gene cluster: identification of genes required for early steps in siderophore biosynthesisE E Wyckoff
Department of Microbiology, University of Texas, Austin 78712 1095, USA
J Bacteriol 179:7055-62. 1997..cholerae strain with a chromosomal mutation in vibA was constructed by marker exchange. This strain was unable to produce vibriobactin or DHBA, confirming that in V. cholerae VibA catalyzes an early step in vibriobactin biosynthesis... - Identification of two Shigella flexneri chromosomal loci involved in intercellular spreadingM Hong
Department of Microbiology and Institute for Cellular and Molecular Biology, University of Texas at Austin, Austin, Texas 78712, USA
Infect Immun 66:4700-10. 1998..flexneri. The mutant with the insertion at 28 min was interrupted in the same open reading frame as S. flexneri ispA. This ispA mutant could not form plaques and was defective in bacterial septation inside tissue culture cells... - Genetics and virulence association of the Shigella flexneri sit iron transport systemCarolyn R Fisher
The University of Texas at Austin, Molecular Genetics and Microbiology, 1 University Station A5000, Austin, TX 78712 0162, USA
Infect Immun 77:1992-9. 2009..The Sit system is also required for virulence in a mouse lung model. The sitA mutant was able to infect the mice and induce a protective immune response but was avirulent compared to its wild-type parent strain... - Genetics and environmental regulation of Shigella iron transport systemsElizabeth E Wyckoff
Section of Molecular Genetics and Microbiology, Institute for Cellular and Molecular Biology, University of Texas, Austin, TX 78712, USA
Biometals 22:43-51. 2009..The effects of oxygen are also seen in infection of cultured cells by Shigella flexneri; the Sit and Iuc systems support plaque formation under aerobic conditions, whereas Feo allows plaque formation anaerobically... - Identification of the Vibrio cholerae enterobactin receptors VctA and IrgA: IrgA is not required for virulenceAlexandra R Mey
Institute for Cellular and Molecular Biology, The University of Texas, Austin, Texas 78712 1095, USA
Infect Immun 70:3419-26. 2002..These data indicate that the virulence defect in MBG40 is not due to the loss of irgA function and that irgA is unlikely to be an important virulence factor... - Positive regulation of the Vibrio cholerae porin OmpT by iron and furS A Craig
Section of Molecular Genetics and Microbiology, Institute for Cellular and Molecular Biology, University of Texas, Austin, TX 78712, USA
J Bacteriol 193:6505-11. 2011..These data suggest that Fur and iron positively regulate ompT expression through the direct binding of Fur to the ompT promoter... - Vibrio cholerae VciB promotes iron uptake via ferrous iron transportersAlexandra R Mey
The University of Texas at Austin, Section of Molecular Genetics and Microbiology, Austin, TX 78712 1095, USA
J Bacteriol 190:5953-62. 2008..A V. cholerae vciB mutant did not exhibit any growth defects in either in vitro or in vivo assays, possibly due to the presence of other systems with overlapping functions in this pathogen... - Iron and pathogenesis of Shigella: iron acquisition in the intracellular environmentShelley M Payne
Section of Molecular Genetics and Microbiology, The University of Texas at Austin, Austin, TX, 78712, USA
Biometals 19:173-80. 2006..This regulation is mediated by the repressor protein Fur and the small RNA RyhB... - Iron and fur regulation in Vibrio cholerae and the role of fur in virulenceAlexandra R Mey
The University of Texas, Section of Molecular Genetics and Microbiology, Austin, TX 78712-1095, USA
Infect Immun 73:8167-78. 2005..cholerae. Consistent with this observation, the fur mutant competed poorly with its wild-type parental strain for colonization of the infant mouse gut... - Cloning and expression of a gene encoding a T-cell reactive protein from Coccidioides immitis: homology to 4-hydroxyphenylpyruvate dioxygenase and the mammalian F antigenE E Wyckoff
Department of Botany, University of Texas, Austin, 78713, USA
Gene 161:107-11. 1995..Expression of the Ci tcrP in Escherichia coli resulted in production of a deep brown pigment, consistent with E. coli expression of the bacterial HPPD homolog from Shewanella colwelliana. The TCRP is likely the Ci form of HPPD...