Enzyme:2.2.1.6

pyruvate:pyruvate acetaldehydetransferase (decarboxylating)
Systematic Name	pyruvate:pyruvate acetaldehydetransferase (decarboxylating)
Common Name	acetolactate synthase alpha-acetohydroxy acid synthetase alpha-acetohydroxyacid synthase alpha-acetolactate synthetase acetolactate pyruvate-lyase (carboxylating)

2-Oxo-butanoic acid + Pyruvic acid = (S)-2-Aceto-2-hydroxy-butanoic acid + CO2
(links: 2-Oxo-butanoic acid + 2-Oxo-propanoic acid = (2S) -2-Ethyl-2-hydroxy-3-oxobutanoic acid + CO2)

2-Oxo-butanoic acid	<Mapping> AtomMap:BMFYS4CAp006$BMFYB4CAi006$0	(2S) -2-Ethyl-2-hydroxy-3-oxobutanoic acid
	1 ↔ 1 2 ↔ 2 3 ↔ 3 4 ↔ 4

2-Oxo-propanoic acid	<Mapping> AtomMap:BMXXSX--0007$BMFYS3CAp025$0	CO2
	1 ↔ 1

2-Oxo-propanoic acid	<Mapping> AtomMap:BMFYS3CAp025$BMFYB4CAi006$0	(2S) -2-Ethyl-2-hydroxy-3-oxobutanoic acid
	2 ↔ 5 3 ↔ 6

2-Oxo-propanoic acid	<Mapping> AtomMap:BMFYS3CAp025$BMFYB4CAp007$0	(2S) -2-Hydroxy-2-methyl-3-oxobutanoic acid
	1 ↔ 1 2 ↔ 2 3 ↔ 3

2-Oxo-propanoic acid	<Mapping> AtomMap:BMXXSX--0007$BMFYS3CAp025$0	CO2
	1 ↔ 1

2-Oxo-propanoic acid	<Mapping> AtomMap:BMFYS3CAp025$BMFYB4CAp007$1 (2nd)	(2S) -2-Hydroxy-2-methyl-3-oxobutanoic acid
	2 ↔ 4 3 ↔ 5

2- (Hydroxyethyl) -thiamine diphosphate	<Mapping> AtomMap:BMMCTZ--e012$BMMCTZ--e005$0	TPP
	1 ↔ 1 2 ↔ 2 3 ↔ 3 4 ↔ 4 5 ↔ 5 6 ↔ 6 7 ↔ 7 8 ↔ 8 9 ↔ 9 10 ↔ 10 11 ↔ 11 12 ↔ 12 13 ↔ 13 14 ↔ 14 15 ↔ 15 16 ↔ 16 17 ↔ 17

2-Oxo-propanoic acid	<Mapping> AtomMap:BMFYS3CAp025$BMFYB4CAp007$0	(2S) -2-Hydroxy-2-methyl-3-oxobutanoic acid
	1 ↔ 1 2 ↔ 2 3 ↔ 3

2- (Hydroxyethyl) -thiamine diphosphate	<Mapping> AtomMap:BMMCTZ--e005$BMFYB4CAp007$0	(2S) -2-Hydroxy-2-methyl-3-oxobutanoic acid
	18 ↔ 4 19 ↔ 5

IDs and Links
IUBMB	EC2
ExPaSy	NiceZyme 2.2.1.6