Assertion: chondroitin disaccharide | /r/MadeOf | no sulfate groups
Facets:
Source sentences:
text: Some streptococci can assimilate hyaluronan as a sole carbon source25, 26, and PTS encoded in the streptococcal GAG genetic cluster is suitable for import of unsaturated hyaluronan disaccharides containing no sulfate groups (Fig. 1, left).