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N-Acetylgalactosamine

Chemical compound

Summary

Chemical compound

| NFPA-H = | NFPA-F = | NFPA-R = | NFPA-S =

Galactosamine Galactose

N-Acetylgalactosamine (GalNAc), is an amino sugar derivative of galactose.

Function

In humans it is the terminal carbohydrate forming the antigen of blood group A.

It is typically the first monosaccharide that connects serine or threonine in particular forms of protein O-glycosylation.

N-Acetylgalactosamine is necessary for intercellular communication, and is concentrated in sensory nerve structures of both humans and animals.

GalNAc is also used as a targeting ligand in investigational antisense oligonucleotides and siRNA therapies targeted to the liver, where it binds to the asialoglycoprotein receptors on hepatocytes.

References

(1964). "Immunochemical Studies on Blood Groups. XXXI. Destruction of Blood Group A Activity by an Enzyme from Clostridium tertium Which Deacetylates N-Acetylgalactosamine in Intact Blood Group Substances". Biochemistry.
(2014). "Multivalent N-Acetylgalactosamine-Conjugated siRNA Localizes in Hepatocytes and Elicits Robust RNAi-Mediated Gene Silencing". Journal of the American Chemical Society.

Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

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