Structure of PDB 4muv Chain B Binding Site BS01

Receptor Information

>4muv Chain B (length=139) Species: 266835 (Mesorhizobium japonicum MAFF 303099)

QEVRRGDFVRNWQLVAAVPLFQKLGPAVLVEIVRALRARTVPAGAVICRI
GEPGDRMFFVVEGSVSVASPNPSELGPGAFFGEMALISGEPRSATVSAAT
TVSLLSLHSADFQMLCSSSPEIAEIFRKTALERRGADAS

Ligand information

• Ligand ID: PCG
• InChI: InChI=1S/C10H12N5O7P/c11-10-13-7-4(8(17)14-10)12-2-15(7)9-5(16)6-3(21-9)1-20-23(18,19)22-6/h2-3,5-6,9,16H,1H2,(H,18,19)(H3,11,13,14,17)/t3-,5-,6-,9-/m1/s1
• InChIKey: ZOOGRGPOEVQQDX-UUOKFMHZSA-N
• SMILES:
  OpenEye OEToolkits 1.5.0: c1nc2c(n1C3C(C4C(O3)COP(=O)(O4)O)O)N=C(NC2=O)N
  ACDLabs 10.04: O=C4NC(=Nc1c4ncn1C3OC2COP(=O)(OC2C3O)O)N
  OpenEye OEToolkits 1.5.0: c1nc2c(n1[C@H]3[C@@H]([C@H]4C(O3)CO[P@](=O)(O4)O)O)N=C(NC2=O)N
  CACTVS 3.341: NC1=Nc2n(cnc2C(=O)N1)[C@@H]3O[C@@H]4CO[P@](O)(=O)O[C@H]4[C@H]3O
  CACTVS 3.341: NC1=Nc2n(cnc2C(=O)N1)[CH]3O[CH]4CO[P](O)(=O)O[CH]4[CH]3O
• Formula: C10 H12 N5 O7 P
• Name: CYCLIC GUANOSINE MONOPHOSPHATE
• ChEMBL: CHEMBL395336
• DrugBank: DB02315
• ZINC: ZINC000004095501
• PDB chain: 4muv Chain B Residue 401

Receptor-Ligand Complex Structure

Structure summary

• PDB: 4muv Determinants of ligand selectivity in a cyclic nucleotide-regulated potassium channel.
• Resolution: 1.25 Å
• Binding residue (original residue number in PDB): V282 F296 G297 E298 M299 A300 R307 S308 R348 D352
• Binding residue (residue number reindexed from 1): V67 F81 G82 E83 M84 A85 R92 S93 R133 D137
• Annotation score: 4
• Binding affinity: MOAD: Kd=336nM

Gene Ontology

Molecular Function

• GO:0005221 intracellularly cyclic nucleotide-activated monoatomic cation channel activity

External links

• PDB: RCSB:4muv, PDBe:4muv, PDBj:4muv
• PDBsum: 4muv
• PubMed: 24981229
• UniProt: Q98GN8|CNGK1_RHILO Cyclic nucleotide-gated potassium channel mll3241 (Gene Name=mll3241)