Enzyme

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ID:1.1.1.n5
Description:3-methylmalate dehydrogenase.

3D structure

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References

RHEA:25763 (2R,3S)-3-methylmalate + NAD(+) = 3-carboxy-2-oxobutanoate + H(+) + NADH
RULE(radius=1) [*:1]-[CH;+0:2](-[*:3])-[OH;+0:4].[*:5]-[n+;H0:6]1:[cH;+0:7]:[cH;+0:8]:[cH;+0:9]:[c;H0;+0:10](-[*:11]):[cH;+0:12]:1>>[*:1]-[C;H0;+0:2](-[*:3])=[O;H0;+0:4].[*:5]-[N;H0;+0:6]1-[CH;+0:7]=[CH;+0:8]-[CH2;+0:9]-[C;H0;+0:10](-[*:11])=[CH;+0:12]-1
Reaction
Core-to-Core More

RHEA:25767 3-carboxy-2-oxobutanoate + H(+) = 2-oxobutanoate + CO2
RULE(radius=1) [*:1]-[CH;+0:2](-[*:3])-[C;H0;+0:4](=[*:5])-[OH;+0:6].[H+;H0:7]>>[*:1]-[CH2;+0:2]-[*:3].[*:5]=[C;H0;+0:4]=[O;H0;+0:6]
Reaction
Core-to-Core No scaffolds atoms were exchanged as a result of the reaction

RHEA:32715 (2R,3S)-3-methylmalate + NAD(+) = 2-oxobutanoate + CO2 + NADH
RULE(radius=1) [*:1]-[CH;+0:2](-[OH;+0:3])-[CH;+0:4](-[*:5])-[C;H0;+0:6](=[*:7])-[OH;+0:8].[*:9]-[n+;H0:10]1:[cH;+0:11]:[cH;+0:12]:[cH;+0:13]:[c;H0;+0:14](-[*:15]):[cH;+0:16]:1>>[*:1]-[C;H0;+0:2](=[O;H0;+0:3])-[CH2;+0:4]-[*:5].[*:9]-[N;H0;+0:10]1-[CH;+0:11]=[CH;+0:12]-[CH2;+0:13]-[C;H0;+0:14](-[*:15])=[CH;+0:16]-1.[*:7]=[C;H0;+0:6]=[O;H0;+0:8]
Reaction
Core-to-Core More

References

TitleAuthorsDatePubMed ID
Enzymology and evolution of the pyruvate pathway to 2-oxobutyrate in Methanocaldococcus jannaschii.Drevland RM, Waheed A, Graham DE2007 Jun17449626