>tr|A0A822PLY6|A0A822PLY6_SHIFL 3-methyl-2-oxobutanoate hydroxymethyltransferase OS=Shigella flexneri 2a GN=panB MKPTTIASLQKYKQDKKRFATITAYDYSFAKLFADEGLNVMLVGDSLGMTVQGHDSTLPV TVADIAYHTAAVRRGAPNCLLLADLPFMAYATPEQAFENAATVMRAGANMVKIEGGEWLV ETVKMLTERAVPVCGHLGLTPQSVNIFGGYKVQGRGNEASDRLLSDALALEAAGAQLLVL ECVPVELAKRITEALAIPVIGIGAGNVTDGQILVMHDAFGITGGHIPKFAKNFLAETGDI RAAVRQYMAEVESGVYPGEEHSFH