Assertion: disaccharide | /r/MadeOf | δ4,5-unsaturated uronic acid
Facets:
Source sentences:
text: Because many of these enzymes act by elimination (bacterial heparin lyases and chondroitinases), they generate disaccharides containing a Δ4,5-unsaturated uronic acid and a hexosamine containing a variable number of sulfate groups13.