>sp|Q4JA70|PANB_SULAC 3-methyl-2-oxobutanoate hydroxymethyltransferase OS=Sulfolobus acidocaldarius GN=panB MSAGKVSIRDFLKKKGKEKITMLTAYDYPTAKIMSMTNLDGILVGDSLSMVVLGYENTLK VSMKEMLVHLDSVVRAKPRQLVVADMPFLSYEVSANTAVKNAGLFVRHGADSVKLEGGEE MADVVRKIVRAGIPVMGHIGLTPQRFLRIGGFRVLGKSKHEEEQLLRDAEVLEEAGIFSL VIENTYADVAKKITEKLKVPTICIGAGPYCDGQILVIHDVLGLSEFTPYFAKAYVNLKEE IQKAVNKYVEEVRESKFPQGENYKERES