Recombinant human B3GAT1 protein

TLAPLLA VHKDEGSDPR RETPPGADPR EYCTSDRDIV EVVRTEYVYT RPPPWSDTLP TIHVVTPTYS RPVQKAELTR MANTLLHVPN LHWLVVEDAP RRTPLTARLL RDTGLNYTHL HVETPRNYKL RGDARDPRIP RGTMQRNLAL RWLRETFPRN SSQPGVVYFA DDDNTYSLEL FEEMRSTRRV SVWPVAFVGG LRYEAPRVNG AGKVVGWKTV FDPHRPFAID MAGFAVNLRL ILQRSQAYFK LRGVKGGYQE SSLLRELVTL NDLEPKAANC TKILVWHTRT EKPVLVNEGK KGFTDPSVEI

B3GAT1, also known as galactosylgalactosylxylosylprotein 3-beta-glucuronosyltransferase 1, is a key enzyme during the biosynthesis of the carbohydrate epitope HNK-1. These enzymes exhibit strict acceptor specificity, recognizing nonreducing terminal sugars and their anomeric linkages. This protein is expressed as a carbohydrate epitope that contains a sulfoglucuronyl residue in several adhesion molecules of the nervous system. Also, the enzyme activity was found to be enhanced in the presence of sphingomyelin and phosphatidylinositol. This protein functions as the key enzyme in a glucuronyl transfer reaction during the biosynthesis of the carbohydrate epitope HNK-1. Recombinant Human B3GAT1, fused to hIgG-His-tag at C-terminus, was expressed in insect cell and purified by using conventional chromatography techniques.

< 1 EU per 1ug of protein (determined by LAL method)

Liquid in. 20mM Tris-HCl buffer (pH 7.5) containing 0.1M NaCl, 10% glycerol

Terayama K., et al, (1997) Proc. Natl. Acad. Sci. USA 94:6093-6098.; ; Kakuda, S., et al, (2005) Glycobiology 2:203-210.

Ala