heparinase ( ec 4.2.2.7 ) purified in our laboratory and a so-called heparinase i ( hep i ) from a commercial source yielded similar oligosaccharide maps with heparin substrates and displayed specificity for di- or trisulfated disaccharides of the structure -- -- 4 ) -alpha-d-glcnp2s ( 6r ) ( 1 -- -- 4 ) -alpha-l-idoap2s ( 1 -- -- ( where r = o-sulfo or oh ) .
C0028959
oligosaccharide
C0012611
disaccharides