3d image of n-acetylglucosamine skeletal formula

n-acetylglucosamine derivative monosaccharide glucose glucosamine acetic acid n-acetyl-d-glucosamine glcnac nag oligopeptides lactic peptidoglycan n-acetylmuramic polymer chitin exoskeleton arthropods insects crustaceans radula mollusk cephalopod hyaluronan glucuronic polymorphonuclear leukocytes autoimmune o-glcnacylation phosphorylation chromatin hyperglycemia insulin resistance hippocampus metabolite metabolism biosynthesis cycle mechanism pathway path catabolism biosynthetic intermediate biogenesis substrate precursor synthesis bioprecursor metabolic endogenous 3d