Enzymes
| UniProtKB help_outline | 2 proteins |
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- Name help_outline α-Neu5Ac-(2→3)-β-D-Gal-(1→4)-6S-D-GlcNAc Identifier CHEBI:197340 Charge -2 Formula C25H40N2O22S InChIKeyhelp_outline YJVPINIUOLHXAF-XQCNPUDTSA-L SMILEShelp_outline OC1[C@@H]([C@H]([C@@H]([C@H](O1)COS([O-])(=O)=O)O[C@H]2[C@@H]([C@H]([C@H]([C@H](O2)CO)O[C@]3(O[C@]([C@@H]([C@H](C3)O)NC(C)=O)([C@@H]([C@H](O)CO)O)[H])C([O-])=O)O)O)O)NC(=O)C 2D coordinates Mol file for the small molecule Search links Involved in 1 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline CMP-N-acetyl-β-neuraminate Identifier CHEBI:57812 (Beilstein: 5899715) help_outline Charge -2 Formula C20H29N4O16P InChIKeyhelp_outline TXCIAUNLDRJGJZ-BILDWYJOSA-L SMILEShelp_outline [H][C@]1(O[C@](C[C@H](O)[C@H]1NC(C)=O)(OP([O-])(=O)OC[C@H]1O[C@H]([C@H](O)[C@@H]1O)n1ccc(N)nc1=O)C([O-])=O)[C@H](O)[C@H](O)CO 2D coordinates Mol file for the small molecule Search links Involved in 106 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline α-Neu5Ac-(2→8)-α-Neu5Ac-(2→3)-β-D-Gal-(1→4)-6S-D-GlcNAc Identifier CHEBI:197339 Charge -3 Formula C36H56N3O30S InChIKeyhelp_outline BJWWWNVSUWWREA-DVTRKUHYSA-K SMILEShelp_outline OC1[C@@H]([C@H]([C@@H]([C@H](O1)COS([O-])(=O)=O)O[C@H]2[C@@H]([C@H]([C@H]([C@H](O2)CO)O[C@]3(O[C@]([C@@H]([C@H](C3)O)NC(C)=O)([C@@H]([C@H](O[C@]4(O[C@]([C@@H]([C@H](C4)O)NC(C)=O)([C@@H]([C@@H](CO)O)O)[H])C(=O)[O-])CO)O)[H])C([O-])=O)O)O)O)NC(=O)C 2D coordinates Mol file for the small molecule Search links Involved in 1 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline CMP Identifier CHEBI:60377 Charge -2 Formula C9H12N3O8P InChIKeyhelp_outline IERHLVCPSMICTF-XVFCMESISA-L SMILEShelp_outline Nc1ccn([C@@H]2O[C@H](COP([O-])([O-])=O)[C@@H](O)[C@H]2O)c(=O)n1 2D coordinates Mol file for the small molecule Search links Involved in 193 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline H+ Identifier CHEBI:15378 Charge 1 Formula H InChIKeyhelp_outline GPRLSGONYQIRFK-UHFFFAOYSA-N SMILEShelp_outline [H+] 2D coordinates Mol file for the small molecule Search links Involved in 9,932 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
Cross-references
| RHEA:77391 | RHEA:77392 | RHEA:77393 | RHEA:77394 | |
|---|---|---|---|---|
| Reaction direction help_outline | undefined | left-to-right | right-to-left | bidirectional |
| UniProtKB help_outline |
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Publications
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Structure of human ST8SiaIII sialyltransferase provides insight into cell-surface polysialylation.
Volkers G., Worrall L.J., Kwan D.H., Yu C.C., Baumann L., Lameignere E., Wasney G.A., Scott N.E., Wakarchuk W., Foster L.J., Withers S.G., Strynadka N.C.
Sialyltransferases of the mammalian ST8Sia family catalyze oligo- and polysialylation of surface-localized glycoproteins and glycolipids through transfer of sialic acids from CMP-sialic acid to the nonreducing ends of sialic acid acceptors. The crystal structure of human ST8SiaIII at 1.85-Å resolu ... >> More
Sialyltransferases of the mammalian ST8Sia family catalyze oligo- and polysialylation of surface-localized glycoproteins and glycolipids through transfer of sialic acids from CMP-sialic acid to the nonreducing ends of sialic acid acceptors. The crystal structure of human ST8SiaIII at 1.85-Å resolution presented here is, to our knowledge, the first solved structure of a polysialyltransferase from any species, and it reveals a cluster of polysialyltransferase-specific structural motifs that collectively provide an extended electropositive surface groove for binding of oligo-polysialic acid chain products. The ternary complex of ST8SiaIII with a donor sugar analog and a sulfated glycan acceptor identified with a sialyltransferase glycan array provides insight into the residues involved in substrate binding, specificity and sialyl transfer. << Less
Nat. Struct. Mol. Biol. 22:627-635(2015) [PubMed] [EuropePMC]