CHR, a novel family of prokaryotic proton motive force-driven transporters probably containing chromate/sulfate antiporters

J Bacteriol. 1998 Nov;180(21):5799-802. doi: 10.1128/JB.180.21.5799-5802.1998.

Abstract

We describe a small family of proteins, CHR, which contains members that function in chromate and/or sulfate transport. CHR proteins occur in bacteria and archaea. They consist of about 400 amino acyl residues, appear to have 10 transmembrane alpha-helical segments in an unusual 4+6 arrangement, and arose by an intragenic duplication event.

Publication types

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

MeSH terms

  • Amino Acid Sequence
  • Antiporters / chemistry
  • Antiporters / classification
  • Antiporters / genetics*
  • Bacterial Proteins / chemistry
  • Bacterial Proteins / classification
  • Bacterial Proteins / genetics*
  • Chromates / metabolism*
  • Molecular Sequence Data
  • Operon
  • Phylogeny
  • Prokaryotic Cells
  • Protons
  • Sequence Homology, Amino Acid
  • Sulfates / metabolism*

Substances

  • Antiporters
  • Bacterial Proteins
  • Chromates
  • Protons
  • Sulfates