>sp|Q1RG56|PANB_ECOUT 3-methyl-2-oxobutanoate hydroxymethyltransferase OS=Escherichia coli GN=panB MKPTTIASLQKCKQDKKRFATITAYDYSFAKLFAEEGLNVMLVGDSLGMTVQGHDSTLPV TVADIAYHTAAVRRGAPNCLLLADLPFMAYATPEQAFENAATVMRAGANMVKIEGGEWLV ETVQMLTERAVPVCGHLGLTPQSVNIFGGYKVQGRGDEAGDRLLSDALALEAAGAQLLVL ECVPVELAKRITEALAIPVIGIGAGNVTDGQILVMHDAFGITGGHIPKFAKNFLAETGDI RAAVRQYMAEVESGVYPGEEHSFH