>sp|C4KKA3|PANB_SULIK 3-methyl-2-oxobutanoate hydroxymethyltransferase OS=Sulfolobus islandicus GN=panB MKKVTIRDFIKKKSTKEKITILTAYDYPTAKIISNTGLDSILVGDSLGMVVLGYANTLNV TMRDMISHTRAVARANPPQLIVADMPFLSYEIDTKSAVKNAGLLVKAGSDAIKLEGGEEM KDTVKAIVKAGIPVMGHIGLTPQRFLRLGGFRTIGKTKQEEDQLIKDSLELEDAGVFSLV IENTYVDIAKRITEKLNIPTICIGAGPYCDGQVLVINDLLGLSEFTPYFAKSYVNLKEII SNAINQYIIDVKNNKFPEKQHYKEKES