Structure of PDB 4ef4 Chain B Binding Site BS01

Receptor Information
>4ef4 Chain B (length=177) Species: 9606 (Homo sapiens) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
NFNVAHGLAWSYYIGYLRLILPELQARIRTYNQHYNNLLRGAVSQRLYIL
LPLDCGVPDNLSMADPNIRFLDKLPQQSNSIYELLENGQRAGTCVLEYAT
PLQTLFAMSQYSQAGFSREDRLEQAKLFCRTLEDILADAPESQNNCRLIA
YQEPASFSLSQEVLRHLRQEEKEEVTV
Ligand information
Ligand IDC2E
InChIInChI=1S/C20H24N10O14P2/c21-19-25-13-7(15(33)27-19)23-3-29(13)17-9(31)11-5(41-17)1-39-45(35,36)44-12-6(2-40-46(37,38)43-11)42-18(10(12)32)30-4-24-8-14(30)26-20(22)28-16(8)34/h3-6,9-12,17-18,31-32H,1-2H2,(H,35,36)(H,37,38)(H3,21,25,27,33)(H3,22,26,28,34)/t5-,6-,9-,10-,11-,12-,17-,18-/m1/s1
InChIKeyPKFDLKSEZWEFGL-MHARETSRSA-N
SMILES
SoftwareSMILES
ACDLabs 11.02O=C7NC(=Nc1c7ncn1C6OC5COP(=O)(OC4C(OC(n2c3N=C(N)NC(=O)c3nc2)C4O)COP(=O)(O)OC5C6O)O)N
OpenEye OEToolkits 1.7.0c1nc2c(n1C3C(C4C(O3)COP(=O)(OC5C(COP(=O)(O4)O)OC(C5O)n6cnc7c6N=C(NC7=O)N)O)O)N=C(NC2=O)N
OpenEye OEToolkits 1.7.0c1nc2c(n1[C@H]3[C@@H]([C@H]4[C@H](O3)CO[P@@](=O)(O[C@@H]5[C@@H](CO[P@@](=O)(O4)O)O[C@H]([C@@H]5O)n6cnc7c6N=C(NC7=O)N)O)O)N=C(NC2=O)N
CACTVS 3.352NC1=Nc2n(cnc2C(=O)N1)[CH]3O[CH]4CO[P](O)(=O)O[CH]5[CH](O)[CH](O[CH]5CO[P](O)(=O)O[CH]4[CH]3O)n6cnc7C(=O)NC(=Nc67)N
CACTVS 3.352NC1=Nc2n(cnc2C(=O)N1)[C@@H]3O[C@@H]4CO[P](O)(=O)O[C@H]5[C@@H](O)[C@@H](O[C@@H]5CO[P](O)(=O)O[C@H]4[C@H]3O)n6cnc7C(=O)NC(=Nc67)N
FormulaC20 H24 N10 O14 P2
Name9,9'-[(2R,3R,3aS,5S,7aR,9R,10R,10aS,12S,14aR)-3,5,10,12-tetrahydroxy-5,12-dioxidooctahydro-2H,7H-difuro[3,2-d:3',2'-j][1,3,7,9,2,8]tetraoxadiphosphacyclododecine-2,9-diyl]bis(2-amino-1,9-dihydro-6H-purin-6-one);
c-di-GMP;
Cyclic diguanosine monophosphate
ChEMBLCHEMBL1231573
DrugBank
ZINCZINC000072319544
PDB chain4ef4 Chain A Residue 401 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
Global viewLocal viewStructure summary

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PDB4ef4 Structural analysis of the STING adaptor protein reveals a hydrophobic dimer interface and mode of cyclic di-GMP binding
Resolution2.147 Å
Binding residue
(original residue number in PDB)
Y167 T263 P264
Binding residue
(residue number reindexed from 1)
Y16 T100 P101
Annotation score1
Binding affinityManual survey: Kd=4.42uM (22579474)
PDBbind-CN: -logKd/Ki=5.35,Kd=4.42uM
BindingDB: EC50=4500nM,Kd=1210nM
Enzymatic activity
Enzyme Commision number ?
Gene Ontology
Biological Process
GO:0002218 activation of innate immune response
GO:0032481 positive regulation of type I interferon production

View graph for
Biological Process
External links
PDB RCSB:4ef4, PDBe:4ef4, PDBj:4ef4
PDBsum4ef4
PubMed22579474
UniProtQ86WV6|STING_HUMAN Stimulator of interferon genes protein (Gene Name=STING1)

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