1.21.99.4	thyroxine 5'-deiodinase	thyroid hormone metabolism II (via conjugation and/or degradation)	
2.4.1.17	glucuronosyltransferase	thyroid hormone metabolism II (via conjugation and/or degradation)	
2.8.2.1	aryl sulfotransferase	thyroid hormone metabolism II (via conjugation and/or degradation)