Willie F Vann

Summary

Affiliation: National Institutes of Health
Country: USA

Publications

  1. ncbi Escherichia coli BL21(DE3) chromosome contains a group II capsular gene cluster
    Ekaterina N Andreishcheva
    Laboratory of Bacterial Polysaccharides, Center for Biologics Evaluation and Research, Building 29, Room 103, 8800 Rockville Pike, Bethesda, MD 20892, USA
    Gene 384:113-9. 2006
  2. ncbi The NeuC protein of Escherichia coli K1 is a UDP N-acetylglucosamine 2-epimerase
    Willie F Vann
    Department of Microbiology and Immunology, University of Rochester Medical Center, Rochester, New York 14642, USA
    J Bacteriol 186:706-12. 2004
  3. ncbi Characterization and acceptor preference of a soluble meningococcal group C polysialyltransferase
    Dwight C Peterson
    Laboratory of Bacterial Polysaccharides, Center for Biologics Evaluation and Research, Building 29, Room 103, 8800 Rockville Pike, Bethesda, MD 20892, USA
    J Bacteriol 193:1576-82. 2011
  4. ncbi Characterization of N-acetylneuraminic acid synthase isoenzyme 1 from Campylobacter jejuni
    Appavu K Sundaram
    Laboratory of Bacterial Toxins, Center for Biologics Evaluation and Research, 8800 Rockville Pike, Bethesda, MD 20892, USA
    Biochem J 383:83-9. 2004
  5. ncbi Gene products required for de novo synthesis of polysialic acid in Escherichia coli K1
    Ekaterina N Andreishcheva
    Laboratory of Bacterial Toxins, Center for Biologics Evaluation and Research, Building 29, Room 103, US FDA, 8800 Rockville Pike, Bethesda, MD 20892, USA
    J Bacteriol 188:1786-97. 2006
  6. ncbi Functional molecular mass of Escherichia coli K92 polysialyltransferase as determined by radiation target analysis
    Justine Vionnet
    Laboratory of Bacterial Polysaccharides, Center for Biologics Evaluation and Research, Food and Drug Administration, Bethesda, Maryland 20892, USA
    Biochemistry 45:13511-6. 2006
  7. ncbi Successive glycosyltransfer of sialic acid by Escherichia coli K92 polysialyltransferase in elongation of oligosialic acceptors
    Justine Vionnet
    Laboratory of Bacterial Polysaccharides, Center for Biologics Evaluation and Research, FDA, Bethesda, MD 20892, USA
    Glycobiology 17:735-43. 2007
  8. ncbi Separate pathways for O acetylation of polymeric and monomeric sialic acids and identification of sialyl O-acetyl esterase in Escherichia coli K1
    Susan M Steenbergen
    Laboratory of Sialobiology, Department of Pathobiology, University of Illinois at Urbana Champaign, 2522 VMBSB, 2001 South Lincoln Avenue, Urbana, IL 61802, USA
    J Bacteriol 188:6195-206. 2006

Collaborators

  • Justine Vionnet
  • Ekaterina N Andreishcheva
  • Dwight C Peterson
  • Susan M Steenbergen
  • Appavu K Sundaram
  • Pumtiwitt C McCarthy
  • Gayathri Arakere
  • Young-Choon Lee
  • Eric R Vimr
  • Young Choon Lee
  • Lori F Wright
  • Ellis S Kempner
  • Lee Pitts
  • Jing Wu
  • Kamilah Muhammad
  • Michael Betenbaugh
  • Ronald W Woodard

Detail Information

Publications8

  1. ncbi Escherichia coli BL21(DE3) chromosome contains a group II capsular gene cluster
    Ekaterina N Andreishcheva
    Laboratory of Bacterial Polysaccharides, Center for Biologics Evaluation and Research, Building 29, Room 103, 8800 Rockville Pike, Bethesda, MD 20892, USA
    Gene 384:113-9. 2006
    ....
  2. ncbi The NeuC protein of Escherichia coli K1 is a UDP N-acetylglucosamine 2-epimerase
    Willie F Vann
    Department of Microbiology and Immunology, University of Rochester Medical Center, Rochester, New York 14642, USA
    J Bacteriol 186:706-12. 2004
    ..The unexpected release of the glucal intermediate and the extremely low rate of ManNAc formation likely were a result of the in vitro assay conditions, in which a key regulatory molecule or protein was absent...
  3. ncbi Characterization and acceptor preference of a soluble meningococcal group C polysialyltransferase
    Dwight C Peterson
    Laboratory of Bacterial Polysaccharides, Center for Biologics Evaluation and Research, Building 29, Room 103, 8800 Rockville Pike, Bethesda, MD 20892, USA
    J Bacteriol 193:1576-82. 2011
    ..This acceptor is an amphipathic molecule and can be elongated to produce polysialic acid that is reactive with group C-specific antibody...
  4. ncbi Characterization of N-acetylneuraminic acid synthase isoenzyme 1 from Campylobacter jejuni
    Appavu K Sundaram
    Laboratory of Bacterial Toxins, Center for Biologics Evaluation and Research, 8800 Rockville Pike, Bethesda, MD 20892, USA
    Biochem J 383:83-9. 2004
    ..The present study is the first stereochemical analysis of the reaction catalysed by a bacterial NeuNAc synthase...
  5. ncbi Gene products required for de novo synthesis of polysialic acid in Escherichia coli K1
    Ekaterina N Andreishcheva
    Laboratory of Bacterial Toxins, Center for Biologics Evaluation and Research, Building 29, Room 103, US FDA, 8800 Rockville Pike, Bethesda, MD 20892, USA
    J Bacteriol 188:1786-97. 2006
    ..coli K1 membranes. Membrane fractions harboring NeuES and KpsC together could form small quantities of the sialic polymer de novo...
  6. ncbi Functional molecular mass of Escherichia coli K92 polysialyltransferase as determined by radiation target analysis
    Justine Vionnet
    Laboratory of Bacterial Polysaccharides, Center for Biologics Evaluation and Research, Food and Drug Administration, Bethesda, Maryland 20892, USA
    Biochemistry 45:13511-6. 2006
    ..The results of these experiments show that while the target size of the catalytic activity for K92 polysialyltransferase is larger than a monomer of NeuS, a large complex is not required for catalysis...
  7. ncbi Successive glycosyltransfer of sialic acid by Escherichia coli K92 polysialyltransferase in elongation of oligosialic acceptors
    Justine Vionnet
    Laboratory of Bacterial Polysaccharides, Center for Biologics Evaluation and Research, FDA, Bethesda, MD 20892, USA
    Glycobiology 17:735-43. 2007
    ..Synthesis can be blocked by CMP-9-azido-NeuNAc. These results suggest that the K92 PST forms both alpha2,8 and alpha2,9 linkages in a successive and nonprocessive fashion...
  8. ncbi Separate pathways for O acetylation of polymeric and monomeric sialic acids and identification of sialyl O-acetyl esterase in Escherichia coli K1
    Susan M Steenbergen
    Laboratory of Sialobiology, Department of Pathobiology, University of Illinois at Urbana Champaign, 2522 VMBSB, 2001 South Lincoln Avenue, Urbana, IL 61802, USA
    J Bacteriol 188:6195-206. 2006
    ..These findings are key to understanding the biological functions of modified sialic acids in E. coli K1 and other species and may provide new targets for drug or vaccine development...