Department of Microbiology, University of Massachusetts, Amherst, Massachusetts 01003, USA.
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.
免疫胶体金定位显示,OmcS 是一种细胞色素,对于 Geobacter sulfurreducens 还原 Fe(III)氧化物是必需的,它沿着菌毛定位。OmcS 分子之间的明显间隔表明,OmcS 促进电子从菌毛向 Fe(III)氧化物转移,而不是促进电子沿着菌毛长度传导。