GT-CORE (public beta v1)

Glycosyltransferase Curated Online Resource for Enzymology

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

ST6GALNAC2

Gallus gallus · Alpha-N-acetylgalactosaminide alpha-2,6-sialyltransferase 2 (EC 2.4.3.3)

GT29Model organism · annotation ≥ 4Fold GT-AInverting

External resources

Identification and annotation

CAZy familyGT29 · CAZy entry
Gene symbolST6GALNAC2
Synonyms / alternate names
  • SIAT7B
  • Gal-beta-1,3-GalNAc alpha-2,6-sialyltransferase
  • GalNAc alpha-2,6-sialyltransferase II
  • ST6GalNAc II
  • Sialyltransferase 7B
UniProt accessionQ92184
NCBI Gene ID396159
Source speciesGallus gallus
Taxonomic domainEukaryota
UniProt annotation level4

Function and localisation

Enzyme functionAlpha-N-acetylgalactosaminide alpha-2,6-sialyltransferase 2 (EC 2.4.3.3)
Subcellular locationGolgi apparatus membrane

Structure and mechanism

Fold typeGT-A
Catalytic mechanismInverting
Cation dependenceNo
Oligomeric statenot curated
PDB structuresnot curated

Donor and acceptor specificity

Sugar nucleotide donorCMP-N-acetyl-beta-neuraminate
Donor CCD code(s)NCC
Acceptor substrate(s)
  • a beta-D-galactosyl-(1->3)-N-acetyl-alpha-D-galactosaminyl derivative
  • a 3-O-[N-acetyl-alpha-D-galactosaminyl]-L-threonyl-[protein]
  • a 3-O-[N-acetyl-alpha-neuraminyl-(2->3)-beta-D-galactosyl-(1->3)-N-acetyl-alpha-D-galactosaminyl]-L-threonyl-[protein]
Acceptor CCD / GlycoCTnot curated

Protein sequences

Full protein sequence

404 aa
MGSPRWKRFCFLLLAAFTSSLLLYGHYYATVDVRSGPRVVTSLLQPELLFLVRPDTPHPDNSHHKELRGTVKSREFFSQPSSELEKPKPSGKQPTPCPRSVAATAKADPTFGELFQFDIPVLMWDQHFNPETWDRLKARRVPYGWQGLSQAAVGSTLRLLNTSSNTRLFDRHLFPGGCIRCAVVGNGGILNGSRQGRAIDAHDLVFRLNGAITKGFEEDVGSKVSFYGFTVNTMKNSLIAYEAYGFTRTPQGKDLKYIFIPSDARDYIMLRSAIQGSPVPEGLDKGDEPQKYFGLEASAEKFKLLHPDFLHYLTTRFLRSELLDMQYGHLYMPSTGALMLLTALHTCDQVSAYGFITANYEQFSDHYYEPEKKPLVFYANHDMLLEAELWRSLHRAGIMELYQR

Catalytic domain sequence

276 aa
MWDQHFNPETWDRLKARRVPYGWQGLSQAAVGSTLRLLNTSSNTRLFDRHLFPGGCIRCAVVGNGGILNGSRQGRAIDAHDLVFRLNGAITKGFEEDVGSKVSFYGFTVNTMKNSLIAYEAYGFTRTPQGKDLKYIFIPSDARDYIMLRSAIQGSPVPEGLDKGDEPQKYFGLEASAEKFKLLHPDFLHYLTTRFLRSELLDMQYGHLYMPSTGALMLLTALHTCDQVSAYGFITANYEQFSDHYYEPEKKPLVFYANHDMLLEAELWRSLHRAGI