>tr|A0A4P7TRL2|A0A4P7TRL2_SHIFM 3-methyl-2-oxobutanoate hydroxymethyltransferase OS=Shigella flexneri serotype 5a GN=panB MKPTTIASLQKYKQDKKRFATITAYDYSFAKLFADEGLNVMLVGDSLGMTVQGHDSTLPV TVADIAYHTAAVRRGAPNCLLLADLPFMAYATPEQAFENAATVMRAGANMVKIEGGEWLV ETVKMLTERAVPVCGHLGLTPQSVNIFGGYKVQGRGNEASDRLLSDALALEAAGAQLLVL ECVPVELAKRITEALAIPVIGIGAGNVTDGQILVMHDAFGITGGHIPKFAKNFLAETGDI RAAVRQYMAEVESGVYPGEEHSFH