HMM Summary Page: TIGR01948

Functionelectron transport complex, RnfABCDGE type, E subunit
Trusted Cutoff213.40
Domain Trusted Cutoff213.40
Noise Cutoff187.25
Domain Noise Cutoff187.25
Isology Typesubfamily
HMM Length196
AuthorHaft DH
Entry DateJul 24 2003 1:26PM
Last ModifiedFeb 14 2011 3:27PM
CommentThe six subunit complex RnfABCDGE in Rhodobacter capsulatus encodes an apparent NADH oxidoreductase responsible for electron transport to nitrogenase, necessary for nitrogen fixation. A closely related complex in E. coli, RsxABCDGE (Reducer of SoxR), reduces the 2Fe-2S-containing superoxide sensor SoxR, active as a transcription factor when oxidized. This family of putative NADH oxidoreductase complexes exists in many of the same species as the related NQR, a Na(+)-translocating NADH-quinone reductase, but is distinct. This model describes the E subunit.
ReferencesRN [1] RM 9154934 RT Membrane localization, topology, and mutual stabilization of the rnfABC gene products in Rhodobacter capsulatus and implications for a new family of energy-coupling NADH oxidoreductases. RA Kumagai H, Fujiwara T, Matsubara H, Saeki K. RL Biochemistry. 1997 May 6;36(18):5509-21. RN [2] RM 12773378 RT A reducing system of the superoxide sensor SoxR in Escherichia coli. RA Koo MS, Lee JH, Rah SY, Yeo WS, Lee JW, Lee KL, Koh YS, Kang SO, Roe JH. RL EMBO J. 2003 Jun 2;22(11):2614-22. DR HAMAP; MF_00478; 63 of 64
Genome PropertyGenProp0130: Rnf-type electron transport complex (HMM)