>tr|Q9RLE2|Q9RLE2_9CYAN 3-methyl-2-oxobutanoate hydroxymethyltransferase OS=Prochlorococcus sp GN=panB MLPSELVKYKKKSQKIIALTAWDSISGSLAEHSGADIVLVGDSLAMVCLGYKSTLPVTLE NMIYHTNAVSRGFSKEIEEQSLLVCDMPFLTYQCGENKAVEYAGKIIKNTYAKAVKVEGA DPEVQNVISRLIRMGIPVMGHLGLTPQSYLNLGFKQQGNNSESHEKIKRDALSLEKLGCF SIVLEHIPELLAKEIQTELEIPTIGIGAGKFCDGQVRVTADLLGLNDKQPPFCRPIIDGK KIFGEKLKEWVAAEKLN