IUPAC 名称
[(2R,3R,4R,5R,6R)-5-acetamido-4,6-dihydroxy-2-(hydroxymethyl)oxan-3-yl]oxidanesulfonic acid
描述
Also known as GalNAc4S, this molecule is a key component of dermatan, keratan and chondroitin sulfate. It is also a substrate for the enzyme N-acteylgalactosamine-4-sulphate transferase. This molecule is found in elevated concentrations in the urine of patients suffering from muchopolysaccharidosis type III, IV and VI. Levels are typically 300-400 times normal values. GalNAc4S is thought to be derived from the action of beta-N-acetylhexosaminidase on sulphated GlcNAc or GalNAc residues at the non-reducing end of keratan sulphate, dermatan sulphate or chondroitin sulphate. [HMDB]
InChI标识符
InChI=1S/C8H15NO9S/c1-3(11)9-5-6(12)7(18-19(14,15)16)4(2-10)17-8(5)13/h4-8,10,12-13H,2H2,1H3,(H,9,11)(H,14,15,16)/t4-,5-,6-,7+,8-/m1/s1