Alignment of the c-type cytochrome OmcS along pili of Geobacter sulfurreducens

Appl Environ Microbiol. 2010 Jun;76(12):4080-4. doi: 10.1128/AEM.00023-10. Epub 2010 Apr 16.


Immunogold localization revealed that OmcS, a cytochrome that is required for Fe(III) oxide reduction by Geobacter sulfurreducens, was localized along the pili. The apparent spacing between OmcS molecules suggests that OmcS facilitates electron transfer from pili to Fe(III) oxides rather than promoting electron conduction along the length of the pili.

Publication types

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

MeSH terms

  • Cytochromes c / analysis*
  • Ferric Compounds / metabolism
  • Fimbriae, Bacterial / chemistry*
  • Geobacter / enzymology*
  • Geobacter / metabolism
  • Immunohistochemistry
  • Microscopy, Immunoelectron


  • Ferric Compounds
  • Cytochromes c