B3GAT3, Recombinant Protein

Beta-13-glucuronyltransferase 3; Beta-1,3-glucuronyltransferase 3; GLCATI

For Research Use Only. Not for use in diagnostic procedures.

E Coli

> 90% by SDS-PAGE

Liquid. In 20mM Tris-HCl Buffer (pH 8.0) containing 0.15M NaCl, 10% glycerol, 1mM DTT

1 mg/ml (determined by Bradford assay) (lot specific)

Can be stored at 4 degree C short term (1-2 weeks).
For long term storage, aliquot and store at -20 degree C or -70 degree C.
Avoid repeated freezing and thawing cycles.

Small volumes of B3GAT3 recombinant protein vial(s) may occasionally become entrapped in the seal of the product vial during shipment and storage. If necessary, briefly centrifuge the vial on a tabletop centrifuge to dislodge any liquid in the container`s cap. Certain products may require to ship with dry ice and additional dry ice fee may apply.

Beta-1,3-glucuronyltransferase 3, also known as B3GAT3, is involved in forming the linkage tetrasaccharide present in heparan sulfate and chondroitin sulfate. This protein can also play a role in the biosynthesis of l2/HNK-1 carbohydrate epitope on glycoproteins. It shows strict specificity for Gal-beta-1,3-Gal-beta-1,4-Xyl, exhibiting negligible incorporation into other galactoside substrates including Galbeta1-3Gal beta1-O-benzyl, Galbeta1-4GlcNAc and Galbeta1-4Glc. Recombinant human B3GAT3 protein, fused to His-tag at N-terminus, was expressed in E Coli and purified by using conventional chromatography techniques.

Metabolism

SDS-PAGE

36.4 kDa (330aa), confirmed by MALDI-TOF

beta-1,3-glucuronyltransferase 3

galactosylgalactosylxylosylprotein 3-beta-glucuronosyltransferase 3

Galactosylgalactosylxylosylprotein 3-beta-glucuronosyltransferase 3

GlcAT-I; GlcUAT-I  [Similar Products]

The protein encoded by this gene is a member of the glucuronyltransferase gene family, enzymes that exhibit strict acceptor specificity, recognizing nonreducing terminal sugars and their anomeric linkages. This gene product catalyzes the formation of the glycosaminoglycan-protein linkage by way of a glucuronyl transfer reaction in the final step of the biosynthesis of the linkage region of proteoglycans. A pseudogene of this gene has been identified on chromosome 3. [provided by RefSeq, Dec 2013]

Glycosaminoglycans biosynthesis (PubMed:25893793). Involved in forming the linkage tetrasaccharide present in heparan sulfate and chondroitin sulfate. Transfers a glucuronic acid moiety from the uridine diphosphate-glucuronic acid (UDP-GlcUA) to the common linkage region trisaccharide Gal-beta-1,3-Gal-beta-1,4-Xyl covalently bound to a Ser residue at the glycosaminylglycan attachment site of proteoglycans. Can also play a role in the biosynthesis of l2/HNK-1 carbohydrate epitope on glycoproteins. Shows strict specificity for Gal-beta-1,3-Gal-beta-1,4-Xyl, exhibiting negligible incorporation into other galactoside substrates including Galbeta1-3Gal beta1-O-benzyl, Galbeta1-4GlcNAc and Galbeta1-4Glc. Stimulates 2-phosphoxylose phosphatase activity of PXYLP1 in presence of uridine diphosphate-glucuronic acid (UDP-GlcUA) during completion of linkage region formation (PubMed:24425863).

Pedersen L.C., et al. (2000) J. Biol. Chem. 275:34580-34585; Tone Y., et al. (2008) J. Biol. Chem. 283:16801-16807

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