HMM Summary Page: TIGR01957

FunctionNADH-quinone oxidoreductase, B subunit
Trusted Cutoff142.70
Domain Trusted Cutoff142.70
Noise Cutoff136.65
Domain Noise Cutoff136.65
Isology Typesubfamily
HMM Length145
Mainrole CategoryEnergy metabolism
Subrole CategoryElectron transport
Gene Ontology TermGO:0030964: NADH dehydrogenase complex cellular_component
GO:0050136: NADH dehydrogenase (quinone) activity molecular_function
GO:0055114: oxidation-reduction process biological_process
AuthorHaft DH
Entry DateAug 7 2003 11:51AM
Last ModifiedFeb 14 2011 3:27PM
CommentThis HMM describes the B chain of complexes that resemble NADH-quinone oxidoreductases. The electron acceptor is a quinone, ubiquinone, in mitochondria and most bacteria, including Escherichia coli, where the recommended gene symbol is nuoB. The quinone is plastoquinone in Synechocystis (where the chain is designated K) and in chloroplast, where NADH may be replaced by NADPH. In the methanogenic archaeal genus Methanosarcina, NADH is replaced by F420H2.
References DR HAMAP; MF_01359; 5 of 116
Genome PropertyGenProp0135: NADH dehydrogenase I (HMM)