Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2B SuperfamilyP-loop nucleotide/nucleoside kinase-like8054277 3002021 SCOP2B (2022-06-29)
BSCOP2B SuperfamilyP-loop nucleotide/nucleoside kinase-like8054277 3002021 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
ASulfotransfer_1e1t8uA1 A: a/b three-layered sandwichesX: P-loop domains-likeH: P-loop domains-relatedT: P-loop containing nucleoside triphosphate hydrolasesF: Sulfotransfer_1ECOD (1.6)
BSulfotransfer_1e1t8uB1 A: a/b three-layered sandwichesX: P-loop domains-likeH: P-loop domains-relatedT: P-loop containing nucleoside triphosphate hydrolasesF: Sulfotransfer_1ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A, B
PF00685Sulfotransferase domain (Sulfotransfer_1)Sulfotransferase domain- Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A, B
heparan sulfate D-glucosaminyl 3-O-sulfotransferase 3A1

Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage

ChainsEnzyme NameDescriptionCatalytic Residues
heparan sulfate glucosamine 3-O-sulfotransferase  M-CSA #999

3-O-sulfotransferase (3-OST) is one of the enzymes involved in the biosynthesis of heparan sulfate by catalyzing the transfer of a sulfate group from 3'-phosphoadenosine-5'-phosphosulfate to glucosamine units of heparan sulfate. Heparan sulfates are polysaccharides with variable patterns of sulfation and acetylation that serve as entry receptors for herpes simplex virus type 1 (HSV-1). Therefore, this enzyme might be a target for drugs since its inhibition may lead to the blockage of HSV-1 viral infections.

Defined by 6 residues: LYS:A-28 [auth A-162]GLU:A-50 [auth A-184]HIS:A-52 [auth A-186]ASP:A-55 [auth A-189]LYS:A-81 [auth A-215]LYS:A-234 [auth A-368]
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