GT-CORE (public beta v1)

Glycosyltransferase Curated Online Resource for Enzymology

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

sotv

Drosophila melanogaster · Exostosin-2 (EC 2.4.1.224; 2.4.1.225)

GT47Model organism · annotation ≥ 4Fold GT-BInverting

External resources

Identification and annotation

CAZy familyGT47 · CAZy entry
Gene symbolsotv
Synonyms / alternate names
  • Ext2
  • Protein sister of tout-velu
UniProt accessionQ9Y169
NCBI Gene ID3772101
Source speciesDrosophila melanogaster
Taxonomic domainEukaryota
UniProt annotation level5

Function and localisation

Enzyme functionExostosin-2 (EC 2.4.1.224; 2.4.1.225)
Subcellular location
  • Endoplasmic reticulum membrane
  • Golgi apparatus membrane

Structure and mechanism

Fold typeGT-B
Catalytic mechanismInverting
Cation dependenceYes (Mn2+)
Oligomeric stateInteracts with sau
PDB structuresnot curated

Donor and acceptor specificity

Sugar nucleotide donor
  • UDP-N-acetyl-alpha-D-glucosamine
  • UDP-alpha-D-glucuronate
Donor CCD code(s)UD1, UGA
Acceptor substrate(s)
  • 3-O-{[(1->4)-beta-D-GlcA-(1->4)-alpha-D-GlcNAc](n)-(1->4)-beta-D-GlcA-(1->3)-beta-D-Gal-(1->3)-beta-D-Gal-(1->4)-beta-D-Xyl}-L-seryl-[protein]
  • 3-O-{alpha-D-GlcNAc-[(1->4)-beta-D-GlcA-(1->4)-alpha-D-GlcNAc](n)-(1->4)-beta-D-GlcA-(1->3)-beta-D-Gal-(1->3)-beta-D-Gal-(1->4)-beta-D-Xyl}-L-seryl-[protein]
Acceptor CCD / GlycoCTnot curated

Protein sequences

Full protein sequence

717 aa
MTKIKNLLSFVTQSRAISHTNPREHILNCLTYGLLVIVALCAGFLLWDLSSSPRDGFFHGKRDSHTLILDLEHIQELAVNPEAEQRARNVNCTFWDCLNIYKCEHDRLKVYIYPLQEFVDEQSDKTATTLSSEYFQILEAVLKSRYYTSNPNEACLFLPSLDLLNQNVFDKHLAGAALASLDFWDRGANHIIFNMLPGGAPSYNTVLDVNTDNAIIFGGGFDSWSYRPGFDVAIPVWSPRLVRQHAHATAQRKFLLVVAQLNILPRFVRTLRELSLAHSEQLLLLGACENLDLTMRCPLSQHHKSLEYPRLLSRGKFCLLGRSLRMGQPDLVEIMSQHCIPVIAVDNYVLPFEDVIDWSLASVRIRENELHSVMQKLKAISSVKIVEMQKQVQWLFSKYFKDLKTVTLTALEVLESRIFPLRARSSRQWNTIDTNARSTFNPLFLPSLAPKSQGFTAVILTYDRVESLFLLIQKLAVVPSLQSILVIWNNQKKSPPHLSTFPSISKPLKIRQTKENKLSNRFYPYPEIETEAILTIDDDIIMLTTDELDFGYEVWREFPDHIVGFPSRIHVWENVTMRWHYESEWTNQISMVLTGAAFHHKYWSHMYTHAMPGDIKDWVDEHMNCEDIAMNFLVANITNNPPIKVTPRKKFKCPECTNTEMLSADLNHMRERSACIDRFSKIYGRMPLRTVEFRADPVLFRDNFPDKLKRYNDIGSL

Catalytic domain sequence

273 aa
DRLKVYIYPLQEFVDEQSDKTATTLSSEYFQILEAVLKSRYYTSNPNEACLFLPSLDLLNQNVFDKHLAGAALASLDFWDRGANHIIFNMLPGGAPSYNTVLDVNTDNAIIFGGGFDSWSYRPGFDVAIPVWSPRLVRQHAHATAQRKFLLVVAQLNILPRFVRTLRELSLAHSEQLLLLGACENLDLTMRCPLSQHHKSLEYPRLLSRGKFCLLGRSLRMGQPDLVEIMSQHCIPVIAVDNYVLPFEDVIDWSLASVRIRENELHSVMQKLK