Details of the Target

General Information of Target

Target ID LDTP05636
Target Name CMP-N-acetylneuraminate-beta-galactosamide-alpha-2,3-sialyltransferase 1 (ST3GAL1)
Gene Name ST3GAL1
Gene ID 6482
Synonyms
SIAT4; SIAT4A; CMP-N-acetylneuraminate-beta-galactosamide-alpha-2,3-sialyltransferase 1; Alpha 2,3-ST 1; Beta-galactoside alpha-2,3-sialyltransferase 1; EC 2.4.3.4; Gal-NAc6S; Gal-beta-1,3-GalNAc-alpha-2,3-sialyltransferase; Monosialoganglioside sialyltransferase; EC 2.4.3.2; SIATFL; ST3Gal I; ST3GalI; ST3GalA.1; ST3O; Sialyltransferase 4A; SIAT4-A
3D Structure
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2D Sequence (FASTA)
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3D Structure (PDB)
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Sequence
MVTLRKRTLKVLTFLVLFIFLTSFFLNYSHTMVATTWFPKQMVLELSENLKRLIKHRPCT
CTHCIGQRKLSAWFDERFNQTMQPLLTAQNALLEDDTYRWWLRLQREKKPNNLNDTIKEL
FRVVPGNVDPMLEKRSVGCRRCAVVGNSGNLRESSYGPEIDSHDFVLRMNKAPTAGFEAD
VGTKTTHHLVYPESFRELGDNVSMILVPFKTIDLEWVVSAITTGTISHTYIPVPAKIRVK
QDKILIYHPAFIKYVFDNWLQGHGRYPSTGILSVIFSMHVCDEVDLYGFGADSKGNWHHY
WENNPSAGAFRKTGVHDADFESNVTATLASINKIRIFKGR
Target Bioclass
Enzyme
Family
Glycosyltransferase 29 family
Subcellular location
Golgi apparatus, Golgi stack membrane
Function
A beta-galactoside alpha2-3 sialyltransferase involved in terminal sialylation of glycoproteins and glycolipids. Catalyzes the transfer of sialic acid (N-acetyl-neuraminic acid; Neu5Ac) from the nucleotide sugar donor CMP-Neu5Ac onto acceptor Galbeta-(1->3)-GalNAc-terminated glycoconjugates through an alpha2-3 linkage. Adds sialic acid to the core 1 O-glycan, Galbeta-(1->3)-GalNAc-O-Ser/Thr, which is a major structure of mucin-type O-glycans. As part of a homeostatic mechanism that regulates CD8-positive T cell numbers, sialylates core 1 O-glycans of T cell glycoproteins, SPN/CD43 and PTPRC/CD45. Prevents premature apoptosis of thymic CD8-positive T cells prior to peripheral emigration, whereas in the secondary lymphoid organs controls the survival of CD8-positive memory T cells generated following a successful immune response. Transfers sialic acid to asialofetuin, presumably onto Galbeta-(1->3)-GalNAc-O-Ser. Sialylates GM1a, GA1 and GD1b gangliosides to form GD1a, GM1b and GT1b, respectively.
Uniprot ID
Q11201
Ensemble ID
ENST00000521180.5
HGNC ID
HGNC:10862
ChEMBL ID
CHEMBL3596074

Probe(s) Labeling This Target

ABPP Probe
Click To Hide/Show 1 Probe Related to This Target
Probe name Structure Binding Site(Ratio) Interaction ID Ref
IPM
 Probe Info  		C142(1.54)  LDD1702  [1]

Competitor(s) Related to This Target

Competitor ID Name Cell line Binding Site(Ratio) Interaction ID Ref
 LDCM0213  Electrophilic fragment 2 MDA-MB-231 C142(1.54)  LDD1702  [1]

References

1 Nucleophilic covalent ligand discovery for the cysteine redoxome. Nat Chem Biol. 2023 Nov;19(11):1309-1319. doi: 10.1038/s41589-023-01330-5. Epub 2023 May 29.
Mass spectrometry data entry: PXD039908 , PXD029761