1.1.1.1	alcohol dehydrogenase	butanol and isobutanol biosynthesis (engineered)	-	-	
1.1.1.85	3-isopropylmalate dehydrogenase	butanol and isobutanol biosynthesis (engineered)	-	-	
1.4.3.3	D-amino-acid oxidase	butanol and isobutanol biosynthesis (engineered)	-	-	
1.4.3.19	glycine oxidase	butanol and isobutanol biosynthesis (engineered)	-	-	
2.3.3.7	3-ethylmalate synthase	butanol and isobutanol biosynthesis (engineered)	-	-	
4.1.1.1	pyruvate decarboxylase	butanol and isobutanol biosynthesis (engineered)	-	-	
4.1.1.72	branched-chain-2-oxoacid decarboxylase	butanol and isobutanol biosynthesis (engineered)	-	-