Extracellular release of antigenic proteins by Helicobacter pylori

Infect Immun. 1998 Jun;66(6):2984-6. doi: 10.1128/IAI.66.6.2984-2986.1998.

Abstract

Screening a Helicobacter pylori genomic library with antisera raised against H. pylori broth culture supernatant resulted in the identification of six antigens: urease, HspB, Lpp20, DnaK, MsrA, and a cysteine-rich 28-kDa protein (designated HcpA). H. pylori antigens may be released into the extracellular space by multiple mechanisms, including specific secretion pathways, autolysis, and membrane vesicle formation.

Publication types

  • Comparative Study
  • Research Support, U.S. Gov't, Non-P.H.S.
  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Amino Acid Sequence
  • Antigens, Bacterial / genetics
  • Antigens, Bacterial / metabolism*
  • Bacterial Proteins / genetics
  • Bacterial Proteins / metabolism
  • Escherichia coli Proteins*
  • Genomic Library
  • HSP70 Heat-Shock Proteins / genetics
  • HSP70 Heat-Shock Proteins / metabolism
  • Heat-Shock Proteins / genetics
  • Heat-Shock Proteins / metabolism
  • Helicobacter pylori / genetics
  • Helicobacter pylori / immunology*
  • Helicobacter pylori / metabolism
  • Hemolysin Proteins
  • Lipoproteins / genetics
  • Lipoproteins / metabolism
  • Membrane Transport Proteins*
  • Molecular Sequence Data
  • Plasmids / genetics
  • Sequence Analysis, DNA
  • Sequence Homology, Amino Acid

Substances

  • Antigens, Bacterial
  • Bacterial Proteins
  • Escherichia coli Proteins
  • HSP70 Heat-Shock Proteins
  • Hcp protein, Vibrio cholerae
  • Heat-Shock Proteins
  • Hemolysin Proteins
  • HspB protein, Helicobacter pylori
  • Lipoproteins
  • Lpp20 protein, Helicobacter pylori
  • Membrane Transport Proteins
  • msrA protein, Staphylococcus epidermidis
  • dnaK protein, E coli

Associated data

  • GENBANK/AF053708
  • GENBANK/AF053709
  • GENBANK/AF053710