β-d-glucosamine

β-D-Glucosamine pentaacetate is an N-acetylglucosamine derivative that has been shown to promote hyaluronic acid production.

N-Acetyl-α-D-glucosamine 1-phosphate disodium (GlcNAc-1-P), an anomeric sugar phosphate, plays a crucial role as an intermediate in the biosynthesis of N-linked glycoproteins. Additionally, it serves as a metabolic precursor for the synthesis of bacterial cell-wall components, particularly teichoic acid and murein [1].

D-Glucosamine 6-phosphate, an endogenous metabolite produced by glutamine fructose-6-phosphate amidotransferase (GFAT), is utilized in studies related to diabetes mellitus [1].

α-D-Glucosamine 1-phosphate, an E. coli metabolite, is a precursor in peptidoglycan synthesis [1] [2].

N-Acetyl-D-Glucosamine (NAG) is a monosaccharide derivative of glucose. It is released by the action of O-GlcNAcase, in mammalian systems from proteins that have been post-translationally modified with O-GlcNAc.

D-Glucosamine-6-sulfate is a naturally occurring glycosaminoglycan. It activates the glmS ribozyme from B. subtilis, a Gram-positive bacterium, when used at a concentration of 200 μM. It has been used to form polyvalent dendrimer conjugates that inhibit angiogenesis and endothelial cell proliferation induced by FGF-2 in vitro and prevent scar tissue formation in a rabbit model of glaucoma surgery.

UDP-N-acetyl-D-Glucosamine is a natural nucleotide sugar that is used by glycosyltransferases to transfer N-acetyl-D-glucosamine residues to substrates.1It is an important component of antibiotic biosynthesis pathways in fungi and lipopolysaccharide production in bacteria.2,3 1.Roseman, S.Reflections on glycobiologyJ. Biol. Chem.276(45)41527-41542(2001) 2.Kudo, F., and Eguchi, T.Biosynthetic genes for aminoglycoside antibioticsJ. Antibiot. (Tokyo)62(9)471-481(2009) 3.Mulrooney, E.F., Poon, K.K., McNally, D.J., et al.Biosynthesis of UDP-N-acetyl-L-fucosamine, a precursor to the biosynthesis of lipopolysaccharide in Pseudomonas aeruginosa serotype O11J. Biol. Chem.280(20)19535-19542(2005)

Chitosan (MW 150000) (Deacetylated chitin) is a linear polysaccharide made up of randomly distributed β-(1-4)-linked D-glucosamine (deacetylated unit) and N-acetyl-D-glucosamine.

Chitosan oligosaccharide (COS) is an oligomer of β-(1→4)-linked D-glucosamine that activates AMPK while inhibiting inflammatory signaling pathways, including NF-κB and MAPK.

N,N'-Diacetylchitobiose, a dimer of β(1,4) linked N-acetyl-D glucosamine, is derived from the hydrolysis of chitin. This compound serves as an alternative carbon source for E. coli.