2.1.2.11 3-methyl-2-oxobutanoate hydroxymethyltransferase; alpha-ketoisovalerate hydroxymethyltransferase; dehydropantoate hydroxymethyltransferase; ketopantoate hydroxymethyltransferase; oxopantoate hydroxymethyltransferase; 5,10-methylene tetrahydrofolate: • • •