Structure of PDB 4rco Chain A Binding Site BS02

Receptor Information

>4rco Chain A (length=192) Species: 93061 (Staphylococcus aureus subsp. aureus NCTC 8325)

NPKFKDLRAYYTKPSLEFKNEIGIILKKWTTIRFMNVVPDYFIYKIALVG
KDDKKYGEGVHRNVDVFVVLEENNYNLEKYSVGGITKSNSKKVDHKAGVR
ITKEDNKGTISHDVSEFKITKEQISLKELDFKLRKQLIEKNNLYGNVGSG
KIVIKMKNGGKYTFELHKKLQENRMADVIDGTNIDNIEVNIK

Ligand information

• Ligand ID: SIA
• InChI: InChI=1S/C11H19NO9/c1-4(14)12-7-5(15)2-11(20,10(18)19)21-9(7)8(17)6(16)3-13/h5-9,13,15-17,20H,2-3H2,1H3,(H,12,14)(H,18,19)/t5-,6+,7+,8+,9+,11+/m0/s1
• InChIKey: SQVRNKJHWKZAKO-YRMXFSIDSA-N
• SMILES:
  CACTVS 3.341: CC(=O)N[CH]1[CH](O)C[C](O)(O[CH]1[CH](O)[CH](O)CO)C(O)=O
  OpenEye OEToolkits 1.5.0: CC(=O)NC1C(CC(OC1C(C(CO)O)O)(C(=O)O)O)O
  OpenEye OEToolkits 1.5.0: CC(=O)N[C@@H]1[C@H](C[C@@](O[C@H]1[C@@H]([C@@H](CO)O)O)(C(=O)O)O)O
  ACDLabs 10.04: O=C(O)C1(O)OC(C(O)C(O)CO)C(NC(=O)C)C(O)C1
  CACTVS 3.341: CC(=O)N[C@@H]1[C@@H](O)C[C@@](O)(O[C@H]1[C@H](O)[C@H](O)CO)C(O)=O
• Formula: C11 H19 N O9
• Name: N-acetyl-alpha-neuraminic acid;
  N-acetylneuraminic acid;
  sialic acid;
  alpha-sialic acid;
  O-SIALIC ACID
• ChEMBL: CHEMBL1234621
• DrugBank: DB03721
• ZINC: ZINC000004081651
• PDB chain: 4rco Chain C Residue 3

Receptor-Ligand Complex Structure

Structure summary

• PDB: 4rco 1.9 Angstrom Crystal Structure of Superantigen-like Protein, Exotoxin from Staphylococcus aureus, in Complex with Sialyl-LewisX.
• Resolution: 1.9 Å
• Binding residue (original residue number in PDB): K277 Y278 T279 R290 D293
• Binding residue (residue number reindexed from 1): K161 Y162 T163 R174 D177
• Annotation score: 4

Gene Ontology

Cellular Component

• GO:0005576 extracellular region

External links

• PDB: RCSB:4rco, PDBe:4rco, PDBj:4rco
• PDBsum: 4rco
• UniProt: Q2G1S8|SSL4_STAA8 Staphylococcal superantigen-like 4 (Gene Name=ssl4)