|
|
H+ + 3-methyloxaloacetate <=> 2-oxobutyrate + CO2
|
4.1.1.112
oxaloacetate decarboxylase
|
–
|
|
BRENDA:
BS390752
KEGG:
R00995
MetaCyc:
RXN-7746
|
|
|
|
H+ + pyruvate + 2-oxobutyrate <=> (S)-2-hydroxy-2-ethyl-3-oxobutanoate + CO2
|
2.2.1.6
acetolactate synthase
|
–
|
|
BRENDA:
BS386670;
BS454179
KEGG:
R08648
MetaCyc:
ACETOOHBUTSYN-RXN
SABIO-RK:
6688
|
|
|
|
2R,3R-2,3-dihydroxy-3-methylpentanoate <=> (S)-3-methyl-2-oxopentanoate + H2O
|
4.2.1.9
dihydroxy-acid dehydratase
|
–
|
|
BRENDA:
BS453486
KEGG:
R05070
MetaCyc:
DIHYDROXYMETVALDEHYDRAT-RXN
|
|
|
|
L-isoleucine + 2-oxoglutarate <=> L-glutamate + (S)-3-methyl-2-oxopentanoate
|
2.6.1.42
branched-chain-amino-acid transaminase
2.6.1.67
2-aminohexanoate transaminase
|
–
–
|
|
BRENDA:
BS356522;
BS452227
KEGG:
R02199
MetaCyc:
BRANCHED-CHAINAMINOTRANSFERILEU-RXN
SABIO-RK:
2171;
9086
|
|
|
|
L-threo-3-methylaspartate + 2-oxoglutarate <=> L-glutamate + 3-methyloxaloacetate
|
2.6.1
|
–
|
|
KEGG:
R04269
MetaCyc:
RXN-7751
|
|
|
|
L-threo-3-methylaspartate <=> L-glutamate
|
5.4.99.1
methylaspartate mutase
|
–
|
|
BRENDA:
BR33
KEGG:
R00262
MetaCyc:
METHYLASPARTATE-MUTASE-RXN
SABIO-RK:
767
|
|
|
|
2R,3R-2,3-dihydroxy-3-methylpentanoate + NADP+ <=> H+ + (S)-2-hydroxy-2-ethyl-3-oxobutanoate + NADPH
|
1.1.1.86
ketol-acid reductoisomerase (NADP+)
|
–
|
|
MetaCyc:
ACETOOHBUTREDUCTOISOM-RXN
|
|