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J Bacteriol. 2006 Apr;188(8):3138-42.

Two putative c-type multiheme cytochromes required for the expression of OmcB, an outer membrane protein essential for optimal Fe(III) reduction in Geobacter sulfurreducens.

Author information

  • 1Department of Microbiology, 203 Morrill Science Center IVN, University of Massachusetts at Amherst, 639 North Pleasant Street, Amherst, MA 01003, USA. bckim@microbio.umass.edu

Abstract

Deletion of two homologous Geobacter sulfurreducens c-type cytochrome genes, omcG and omcH, decreased the rate of Fe(III) reduction and decreased the level of an outer membrane cytochrome critical for Fe(III) reduction, OmcB, without affecting its transcription. Expression of either gene restored Fe(III) reduction and OmcB expression, suggesting functional similarity.

PMID:
16585776
PMCID:
PMC1447008
DOI:
10.1128/JB.188.8.3138-3142.2006
[PubMed - indexed for MEDLINE]
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