HMM Summary Page: TIGR02936

Functionferredoxin III, nif-specific
Gene SymbolfdxB
Trusted Cutoff80.55
Domain Trusted Cutoff80.55
Noise Cutoff61.25
Domain Noise Cutoff61.25
Isology Typeequivalog
HMM Length91
Mainrole CategoryCentral intermediary metabolism
Subrole CategoryNitrogen fixation
AuthorHaft DH
Entry DateMay 18 2006 4:17PM
Last ModifiedFeb 14 2011 3:27PM
CommentMembers of this family are homodimeric ferredoxins from nitrogen fixation regions of many nitrogen-fixing bacteria. As characterized in Rhodobacter capsulatus, these proteins are homodimeric, with two 4Fe-4S clusters bound per monomer. Although nif-specific, this protein family is not usiveral, as other nitrogenase systems may substitute flavodoxins, or different types of ferredoxin.
ReferencesRN [1] RM PMID: 8387524 RT Purification and characterization of a novel dimeric ferredoxin (FdIII) from Rhodobacter capsulatus. RA Jouanneau Y, Meyer C, Gaillard J, Forest E, Gagnon J RL J Biol Chem. 1993 May 15;268(14):10636-44.
Genome PropertyGenProp0029: nitrogen fixation (HMM)