GT-CORE (public beta v1)

Glycosyltransferase Curated Online Resource for Enzymology

Family-organised sequence, structure, mechanism and substrate-specificity records for the CAZy glycosyltransferases

B3GAT1

Pan troglodytes · Galactosylgalactosylxylosylprotein 3-beta-glucuronosyltransferase 1 (EC 2.4.1.135)

GT43Non-model organism · annotation 4–5Fold GT-AInverting

External resources

Identification and annotation

CAZy familyGT43 · CAZy entry
Gene symbolB3GAT1
Synonyms / alternate names
  • Beta-1,3-glucuronyltransferase 1
  • Glucuronosyltransferase P
  • UDP-GlcUA:glycoprotein beta-1,3-glucuronyltransferase
UniProt accessionQ5CB04
NCBI Gene ID466859
Source speciesPan troglodytes
Taxonomic domainEukaryota
UniProt annotation level4

Function and localisation

Enzyme functionGalactosylgalactosylxylosylprotein 3-beta-glucuronosyltransferase 1 (EC 2.4.1.135)
Subcellular location
  • Golgi apparatus membrane
  • Secreted

Structure and mechanism

Fold typeGT-A
Catalytic mechanismInverting
Cation dependenceYes (Mn2+)
Oligomeric statehomodimer
PDB structuresnot curated

Donor and acceptor specificity

Sugar nucleotide donorUDP-alpha-D-glucuronate
Donor CCD code(s)UGA
Acceptor substrate(s)3-O-(beta-D-galactosyl-(1->3)-beta-D-galactosyl-(1->4)-beta-D-xylosyl)-L-seryl-[protein]
Acceptor CCD / GlycoCTnot curated

Protein sequences

Full protein sequence

332 aa
MPKRRDILAIVLIVLPWTLLITVWHQSTLAPLLAVHKDEGSDPRRETPPGADPREYCMSDRDIVEVVRTEYVYTRPPPWSDTLPTIHVVTPTYSRPVQKAELTRMANTLLHVPNLHWLVVEDAPRRTPLTARLLRDTGLNYTHLHVETPRNYKLRGDARDPRIPRGTMQRNLALRWLRETFPRNSSQPGVVYFADDDNPYSLELFQKVTRRVSVWPVAFVGGLRYEAPRVNGAGKVVGWKTVFDPHRPFAIDMAGFAVNLRLILQRSQAYFKLRGVKGGYQESSLLRELVTLNDLEPKAANCTKILVWHTRTEKPVLVNEGKKGFTDPSVEI

Catalytic domain sequence

231 aa
PTIHVVTPTYSRPVQKAELTRMANTLLHVPNLHWLVVEDAPRRTPLTARLLRDTGLNYTHLHVETPRNYKLRGDARDPRIPRGTMQRNLALRWLRETFPRNSSQPGVVYFADDDNPYSLELFQKVTRRVSVWPVAFVGGLRYEAPRVNGAGKVVGWKTVFDPHRPFAIDMAGFAVNLRLILQRSQAYFKLRGVKGGYQESSLLRELVTLNDLEPKAANCTKILVWHTRTEK