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6NEF

Outer Membrane Cytochrome S Filament from Geobacter Sulfurreducens

Summary for 6NEF
Entry DOI10.2210/pdb6nef/pdb
EMDB information9357
DescriptorC-type cytochrome OmcS, HEME C, MAGNESIUM ION (3 entities in total)
Functional Keywordsconductive, filament, nanowire, six-heme multiheme c-type cytochrome, protein fibril
Biological sourceGeobacter sulfurreducens (strain ATCC 51573 / DSM 12127 / PCA)
Total number of polymer chains1
Total formula weight46721.33
Authors
Filman, D.J.,Marino, S.F.,Ward, J.E.,Yang, L.,Mester, Z.,Bullitt, E.,Lovley, D.R.,Strauss, M. (deposition date: 2018-12-17, release date: 2019-07-03, Last modification date: 2024-10-23)
Primary citationFilman, D.J.,Marino, S.F.,Ward, J.E.,Yang, L.,Mester, Z.,Bullitt, E.,Lovley, D.R.,Strauss, M.
Cryo-EM reveals the structural basis of long-range electron transport in a cytochrome-based bacterial nanowire.
Commun Biol, 2:219-219, 2019
Cited by
PubMed Abstract: Electrically conductive pili from species, termed bacterial nanowires, are intensely studied for their biological significance and potential in the development of new materials. Using cryo-electron microscopy, we have characterized nanowires from conductive pili preparations that are composed solely of head-to-tail stacked monomers of the six-heme C-type cytochrome OmcS. The unique fold of OmcS - closely wrapped around a continuous stack of hemes that can serve as an uninterrupted path for electron transport - generates a scaffold that supports the unbranched chain of hemes along the central axis of the filament. We present here, at 3.4 Å resolution, the structure of this cytochrome-based filament and discuss its possible role in long-range biological electron transport.
PubMed: 31240257
DOI: 10.1038/s42003-019-0448-9
PDB entries with the same primary citation
Experimental method
ELECTRON MICROSCOPY (3.4 Å)
Structure validation

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