Human β-1,3-Glucuronyltransferase 3 Protein is a recombinant protein from Human produced in E. coli. Recombinant Human Galactosylgalactosylxylosylprotein 3-beta-glucuronosyltransferase 3 is produced by our E.coli expression system and the target gene encoding Glu72-Val335 is expressed with a 6His tag at the C-terminus.