>tr|A0A4D4M2T9|A0A4D4M2T9_STRAX 3-methyl-2-oxobutanoate hydroxymethyltransferase OS=Streptomyces avermitilis GN=panB MTQLSAAQKPSDSSKALYGGKGTRRITIRDITTAKERGEKWPMLTAYDAMTASVFDEAGI PVMLVGDSAGNCHLGYETTVPVTLDEMTMLSAAVVRGTSRALIVGDLPFGSYQEGPVQAL RSATRLVKEAGVGAVKLEGGERSHRQIELLVESGIPVMAHIGLTPQSVNAMGYRVQGRGE EAAQQLLRDAKAVQDAGAFAVVLELVPAELAAEVTRVLHIPTVGIGAGPETDAQVLVWTD MLGLTGGKVPKFVKKYADLREVMGNAAKAFAEDVVGGTFPLEEHSVH