Structural highlights
1gx7 is a 3 chain structure with sequence from Desulfovibrio vulgaris. Full experimental information is available from OCA. For a guided tour on the structure components use FirstGlance.
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| Ligands: | , , , , , |
| Related: | 1hfe, 1a2i, 1mdv, 2cth, 2cym |
| Activity: | Ferredoxin hydrogenase, with EC number 1.12.7.2 |
| Resources: | FirstGlance, OCA, RCSB, PDBsum |
Function
[PHFL_DESVH] May be involved in hydrogen uptake for the reduction of sulfate to hydrogen sulfide in an electron transport chain. Cytochrome c3 is likely to be the physiological electron carrier for the enzyme. [CYC3_DESVH] Participates in sulfate respiration coupled with phosphorylation by transferring electrons from the enzyme dehydrogenase to ferredoxin. [PHFS_DESVH] May be involved in hydrogen uptake for the reduction of sulfate to hydrogen sulfide in an electron transport chain. Cytochrome c3 is likely to be the physiological electron carrier for the enzyme.
Evolutionary Conservation
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.
Publication Abstract from PubMed
Cytochrome c(3) (M(r) 13000) is a low redox potential cytochrome specific of the anaerobic metabolism in sulfate-reducing bacteria. This tetrahemic cytochrome is an intermediate between the [Fe]-hydrogenase and the cytochrome Hmc in Desulfovibrio vulgaris Hildenborough strain. The present work describes the structural model of the cytochrome c(3)-[Fe]-hydrogenase complex obtained by nuclear magnetic resonance restrained docking. This model connects the distal cluster of the [Fe]-hydrogenase to heme 4 of the cytochrome, the same heme found in the interaction with cytochrome Hmc. This result gives evidence that cytochrome c(3) is an electron shuttle between the periplasmic hydrogenase and the Hmc membrane-bound complex.
The cytochrome c3-[Fe]-hydrogenase electron-transfer complex: structural model by NMR restrained docking.,ElAntak L, Morelli X, Bornet O, Hatchikian C, Czjzek M, Dolla A, Guerlesquin F FEBS Lett. 2003 Jul 31;548(1-3):1-4. PMID:12885397[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ ElAntak L, Morelli X, Bornet O, Hatchikian C, Czjzek M, Dolla A, Guerlesquin F. The cytochrome c3-[Fe]-hydrogenase electron-transfer complex: structural model by NMR restrained docking. FEBS Lett. 2003 Jul 31;548(1-3):1-4. PMID:12885397
