>tr|D8AA26|D8AA26_ECOMS 3-methyl-2-oxobutanoate hydroxymethyltransferase OS=Escherichia coli GN=panB MKPTTIASLQKCKQDKKRFATITAYDYSFAKLFAEEGLNVMLVGDSLGMTVQGHDSTLPV TVADIAYHTAAVRRGAPNCLLLADLPFMAYATPEQAFENAATVMRAGANMVKIEGGEWLV ETVQMLTERAVPVCGHLGLTPQSVNIFGGYKVQGRGDEAGDQLLSDALALEAAGAQLLVL ECVPVELAKRITEALAIPVIGIGAGNVTDGQILVMHDAFGITGGHIPKFAKNFLAETGDI RAAVRQYMAEVESGVYPGEEHSFH