2'3'-cGAMP   Click here for help

GtoPdb Ligand ID: 9207

Synonyms: cyclic [G(2',5')pA(3',5')p] | cyclic GMP-AMP | Cyclic guanosine monophosphate-adenosine monophosphate
PDB Ligand Immunopharmacology Ligand
Compound class: Synthetic organic
Comment: 2'3'-cGAMP is produced in mammalian cells by the action of cyclic guanosine monophosphate (GMP)-adenosine monophosphate (AMP) synthase (cGAS) upon detection of double-stranded DNA in the cytosol that originates for example, from tumours or viruses. It is the endogenous agonist of the human STING protein [2], but appears not to activate mouse Sting. STING activation at the endoplasmic reticulum triggers type-I IFNs production by the innate immune response [1].
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2D Structure
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Physico-chemical Properties
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Hydrogen bond acceptors 20
Hydrogen bond donors 7
Rotatable bonds 2
Topological polar surface area 349.27
Molecular weight 674.1
XLogP -3.71
No. Lipinski's rules broken 2
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Canonical SMILES Nc1nc(=O)c2c([nH]1)n(cn2)C1OC2C(C1OP(=O)(O)OCC1C(OP(=O)(OC2)O)C(C(O1)n1cnc2c1ncnc2N)O)O
Isomeric SMILES Nc1nc(=O)c2c([nH]1)n(cn2)[C@@H]1O[C@H]2[C@H]([C@H]1OP(=O)(O)OC[C@@H]1[C@@H](OP(=O)(OC2)O)[C@H]([C@@H](O1)n1cnc2c1ncnc2N)O)O
InChI InChI=1S/C20H24N10O13P2/c21-14-8-15(24-3-23-14)29(4-25-8)18-11(32)12-7(41-18)2-39-45(36,37)43-13-10(31)6(1-38-44(34,35)42-12)40-19(13)30-5-26-9-16(30)27-20(22)28-17(9)33/h3-7,10-13,18-19,31-32H,1-2H2,(H,34,35)(H,36,37)(H2,21,23,24)(H3,22,27,28,33)/t6-,7-,10-,11-,12-,13-,18-,19-/m1/s1
1. Wu J, Sun L, Chen X, Du F, Shi H, Chen C, Chen ZJ. (2013)
Cyclic GMP-AMP is an endogenous second messenger in innate immune signaling by cytosolic DNA.
Science, 339 (6121): 826-30. [PMID:23258412]
2. Zhang X, Shi H, Wu J, Zhang X, Sun L, Chen C, Chen ZJ. (2013)
Cyclic GMP-AMP containing mixed phosphodiester linkages is an endogenous high-affinity ligand for STING.
Mol Cell, 51 (2): 226-35. [PMID:23747010]