>tr|A0A0E1T219|A0A0E1T219_ECOLX 3-methyl-2-oxobutanoate hydroxymethyltransferase OS=Escherichia coli 53638 GN=panB MKPTTISLLQKYKQEKKRFATITAYDYSFAKLFADEGLNVMLVGDSLGMTVQGHDSTLPV TVADIAYHTAAVRRGAPNCLLLADLPFMAYATPEQAFENAATVMRAGANMVKIEGGEWLV ETVQMLTERAVPVCGHLGLTPQSVNIFGGYKVQGRGDEAGDQLLSDALALEAAGAQLLVL ECVPVELAKRITEALAIPVIGIGAGNVTDGQILVMHDAFGITGGHIPKFAKNFLAETGDI RAAVRQYMAEVESGVYPGEEHSFH