>tr|A0A0U2WRU3|A0A0U2WRU3_9CREN 3-methyl-2-oxobutanoate hydroxymethyltransferase OS=Sulfolobus acidocaldarius GN=panB MSAGKVSIRDFLKKKGKEKITMLTAYDYPTAKIMSMTNLDGILVGDSLSMVVLGYENTLK VSMKEMLVHLDSVVRAKPRQLVVADMPFLSYEVSANTAVKNAGLFVRHGADSVKLEGGEE MADVVRKIVRAGIPVMGHIGLTPQRFLRIGGFRVLGKSKHEEEQLLRDAEVLEEAGIFSL VIENTYADVAKKITEKLKVPTICIGAGPYCDGQILVIHDVLGLSEFTPYFAKAYVNLKEE IQKAVNKYVEEVRESKFPQGENYKERES