>sp|A1A7I0|PANB_ECOK1 3-methyl-2-oxobutanoate hydroxymethyltransferase OS=Escherichia coli O1:K1 / APEC GN=panB MKPTTIASLQKCKQDKKRFATITAYDYSFAKLFAEEGLNVMLVGDSLGMTVQGHDSTLPV TVADIAYHTAAVRRGAPNCLLLADLPFMAYATPEQAFENAATVMRAGANMVKIEGGEWLV ETVQMLTERAVPVCGHLGLTPQSVNIFGGYKVQGRGDEAGDRLLSDALALEAAGAQLLVL ECVPVELAKRITEALAIPVIGIGAGNVTDGQILVMHDAFGITGGHIPKFAKNFLAETGDI RAAVRQYMAEVESGVYPGEEHSFH