o-glycosylation

Benzyl-α-GalNAc (O-glycosylation-IN-1) is a potent inhibitor of O-glycosylation and is used to reduce mucin on cell surfaces.

T3Inh-1 is an effective and selective inhibitor of ppGalNAc-T3 with an IC50 of 7 µM. T3Inh-1 prevents breast cancer cells. T3Inh-1 reduces FGF23 hormone levels in both tissue cells and mice, without causing any toxic side effects.

3,4,6-Tri-O-benzyl-β-D-mannopyranose 1,2-(methyl orthoacetate) is a synthetic intermediate used in glycosylation reactions. Typically, the methyl orthoester protecting group is first removed by mild acid hydrolysis, producing a glycosyl donor. Removal of the O-benzyl protecting groups is performed late in the synthesis.

FMOC-L-THR (AZP-531) is an analogue of unacylated ghrelin designed to improve glycaemic control and reduce weight. The O-glycosidic linkage and the O-acetyl protection in this building block is stable to both piperidine and TFA, making it completely compatible with standard protocols in Fmoc solid phase peptide synthesis. The Tn antigen is a tumor-associated carbohydrate antigen that is not normally expressed in peripheral tissues or blood cells. Expression of this antigen, which is found in a majority of human carcinomas of all types, arises from a blockage in the normal O-glycosylation pathway in which glycans are extended from the common precursor GalNAcα1-O-Ser/Thr (Tn +antigen)[1].

D-(+)-Xylose (Wood sugar) is an aldopentose - a monosaccharide containing five carbon atoms and an aldehyde functional group. It has chemical formula C5H10O5 and is 40% as sweet as sucrose. Xylose is also found in mucopolysaccharides of connective tissue and sometimes in the urine. Xylose is the first sugar added to serine or threonine residues during proteoglycan type O-glycosylation. Therefore xylose is involved in the biosythetic pathways of most anionic polysaccharides such as heparan sulphate and chondroitin sulphate. In medicine, xylose is used to test for malabsorption by administering a xylose solution to the patient after fasting. If xylose is detected in the blood and/or urine within the next few hours, it has been absorbed by the intestines. Xylose is said to be one of eight sugars which are essential for human nutrition, the others being galactose, glucose, mannose, N-acetylglucosamine, N-acetylgalactosamine, fucose, and sialic acid. . Xylose in the urine is a biomarker for the consumption of apples and other fruits.

Chrysin 7-O-beta-gentiobioside (Chrysin 7-O-β-gentiobioside), a glycosylation product of Chrysin, is from Spartium junceum.

3-Deoxy-1,2;5,6-di-O-isopropylidene-D-glucofuranose is a polysaccharide oligosaccharide. It is used in glycosylation synthesis and can be custom synthesized for use as a carbohydrate in drugs. It has antiviral activity against Epstein-Barr virus by inhibiting viral protein synthesis.