catalytic activity:UDP-alpha-D-glucuronate + N-acetyl-beta-D-galactosaminyl-(1->4)-beta-D-glucuronosyl-proteoglycan = UDP + beta-D-glucuronosyl-(1->3)-N-acetyl-beta-D-galactosaminyl-(1->4)-beta-D-glucuronosyl-proteoglycan.,catalytic activity:UDP-N-acetyl-D-galactosamine + beta-D-glucuronosyl-(1->3)-N-acetyl-beta-D-galactosaminyl-proteoglycan = UDP + N-acetyl-beta-D-galactosaminyl-(1->4)-beta-D-glucuronosyl-(1->3)-N-acetyl-beta-D-galactosaminyl-proteoglycan.,cofactor:Divalent cations. Highest activities are measured with manganese. Can also utilize cobalt.,function:Has both beta-1,3-glucuronic acid and beta-1,4-N-acetylgalactosamine transferase activity. Transfers glucuronic acid (GlcUA) from UDP-GlcUA and N-acetylgalactosamine (GalNAc) from UDP-GalNAc to the non-reducing end of the elongating chondroitin polymer.,online information:GlycoGene database,PTM:Phosphorylated upon DNA damage, probably by ATM or ATR.,similarity:Belongs to the chondroitin N-acetylgalactosaminyltransferase family.,subunit:Binds CHSY1.,tissue specificity:Ubiquitous. Highly expressed in pancreas, ovary, brain, heart, skeletal muscle, colon, kidney, liver, stomach, small intestine and placenta.,
[Isoform 1]: Golgi apparatus, Golgi stack membrane ; Single-pass type II membrane protein . Cytoplasm, cytosol .; [Isoform 3]: Cytoplasm, cytosol . Mitochondrion .; [Isoform 2]: Mitochondrion matrix .
Ubiquitous. Highly expressed in pancreas, ovary, brain, heart, skeletal muscle, colon, kidney, liver, stomach, spleen and placenta. ; [Isoform 2]: Expressed in brain, spleen, ovary, testis, lung and peripheral mononuclear cells. ; [Isoform 3]: Also ubiquitous.
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