E-Poster P1139: A High-Strength Retinol Serum Enhanced with N-Acetylglucosamine
Provides Significant Anti-Ageing Effects in Combination with a Comprehensive Skincare Regimen
Two O-linked N-acetylglucosamine
transferase genes of Arabidopsis thaliana L.
, maltose and pectin showed significant increase in chitinase production based on units/mg protein, respectively (Table 2).
Amongst the various substrates, acid swollen chitin was found to be the best substrate for chitinase when used at the concentration of 1% exhibiting its high specificity in catalyzing glycosidic bonds between N-acetylglucosamine
The enzyme's job is to add a molecule called N-acetylglucosamine
(GlcNAc), a derivative of glucose, to proteins, a phenomenon first discovered in 1984 by Gerald Hart, Ph.
5) copolymer of glucosamine and N-acetylglucosamine
obtained by the alkaline, partial deacetylation of chitin.
Chemically, it is a natural polymer of N-acetylglucosamine
, a relative of glucose and cellulose.
01 mol/L N-acetylglucosamine
was prepared with NMR diluent.
PIA biosynthesis is carried out by the proteins encoded by the ica gene operon: N-acetylglucosamine
transferase (icaA and icaD), PIA deacylase (icaB), PIA exporter (icaC) and the regulatory gene (icaR) [12 13].
Abstract Chitin is a naturally occurring insoluble linear AY1-4 linked polymer of N-acetylglucosamine
and a common constituent of the fungal cell wall and exoskeleton of arthropods.
Bers, his UC Davis team and their collaborators at the Johns Hopkins University School of Medicine conducted a series of experiments to show that the moderate to high blood glucose levels characteristic of diabetes caused a sugar molecule (O-linked N-acetylglucosamine
, or O-GlcNAc) in heart muscle cells to fuse to a specific site on a protein known as calcium/calmodulin-dependent protein kinase II, or CaMKII.
0 that released one nmol reducing sugar as glucose (celluase assay) or N-acetylglucosamine
(chitinase as- say) per min per mg protein.