3.1.6.11	disulfoglucosamine-6-sulfatase	heparin degradation	-	-	
3.1.6.13	iduronate-2-sulfatase	heparin degradation	-	-	
3.2.1.56	glucuronosyl-disulfoglucosamine glucuronidase	heparin degradation	-	-	
3.10.1.1	N-sulfoglucosamine sulfohydrolase	heparin degradation	-	-	
4.2.2.7	heparin lyase	heparin degradation	-	-