Polypeptide fragments comprising c terminal portion of helicobacter catalase

摘要

An isolated polypeptide and immunogenic fragments thereof are described together with their variants and derivatives as novel immunogenic agents for treating or preventing Helicobacter infection in a mammalian host. The polypeptide comprises a C-terminal portion of a Helicobacter catalase, which portion lacks significant amino acid sequence identity with human catalase, wherein the polypeptide is other than full-length Helicobacter catalase.