ID 4.2.1.55 DE 3-hydroxybutyryl-CoA dehydratase. AN Crotonase. CA (3R)-3-hydroxybutanoyl-CoA = crotonoyl-CoA + H(2)O. CC -!- Also acts on crotonoyl thioesters of pantetheine and acyl-carrier CC protein. PR PROSITE; PDOC00150; DR P52046, CRT_CLOAB ; P45361, CRT_CLODI ; P81357, CRT_CLOPA ; //