Structure of PDB 1n26 Chain A Binding Site BS01

Receptor Information

>1n26 Chain A (length=299) Species: 9606 (Homo sapiens)

LAPRRCPAQEVARGVLTSLPGDSVTLTCPGVEPEDNATVHWVLRKPAAGS
HPSRWAGMGRRLLLRSVQLHDSGNYSCYRAGRPAGTVHLLVDVPPEEPQL
SCFRKSPLSNVVCEWGPRSTPSLTTKAVLLVRKFQNSPAEDFQEPCQYSQ
ESQKFSCQLAVPEGDSSFYIVSMCVASSVGSKFSKTQTFQGCGILQPDPP
ANITVTAVARNPRWLSVTWQDPHSWNSSFYRLRFELRYRAERSKTFTTWM
VKDLQHHCVIHDAWSGLRHVVQLRAQEEFGQGEWSEWSPEAMGTPWTES

Ligand information

• Ligand ID: CYS
• InChI: InChI=1S/C3H7NO2S/c4-2(1-7)3(5)6/h2,7H,1,4H2,(H,5,6)/t2-/m0/s1
• InChIKey: XUJNEKJLAYXESH-REOHCLBHSA-N
• SMILES:
  CACTVS 3.341: N[CH](CS)C(O)=O
  OpenEye OEToolkits 1.5.0: C([C@@H](C(=O)O)N)S
  CACTVS 3.341: N[C@@H](CS)C(O)=O
  ACDLabs 10.04: O=C(O)C(N)CS
  OpenEye OEToolkits 1.5.0: C(C(C(=O)O)N)S
• Formula: C3 H7 N O2 S
• Name: CYSTEINE
• ChEMBL: CHEMBL863
• DrugBank: DB00151
• ZINC: ZINC000000895042
• PDB chain: 1n26 Chain A Residue 692

Receptor-Ligand Complex Structure

Structure summary

• PDB: 1n26 Structure of the extracellular domains of the human interleukin-6 receptor alpha-chain.
• Resolution: 2.4 Å
• Binding residue (original residue number in PDB): S166 Q190 C192
• Binding residue (residue number reindexed from 1): S166 Q190 C192
• Annotation score: 4

Gene Ontology

Molecular Function

• GO:0004896 cytokine receptor activity

Cellular Component

• GO:0016020 membrane

External links

• PDB: RCSB:1n26, PDBe:1n26, PDBj:1n26
• PDBsum: 1n26
• PubMed: 12461182
• UniProt: P08887|IL6RA_HUMAN Interleukin-6 receptor subunit alpha (Gene Name=IL6R)