Assertion: polysaccharide's group | /r/CapableOf | lack acetate substituents
Facets:
Source sentences:
text: One promising vaccine target with the potential to overcome the need to produce a unique carbohydrate immunogen against every microbial pathogen is the cell surface polysaccharide poly-N-acetyl-d-glucosamine (PNAG), a β-(1→6)–linked polymer of GlcNAc with some portion of the amino groups lacking acetate substituents.