7KVZ

Structure of hSTING in complex with novel carbocyclic pyrimidine CDN-2

Summary for 7KVZ

• Entry DOI: 10.2210/pdb7kvz/pdb
• Descriptor: Stimulator of interferon genes protein, (2R,5R,7R,8R,10S,12aR,14R,15aS,16R)-7-(2-amino-6-oxo-1,6-dihydro-9H-purin-9-yl)-2,10,16-trihydroxy-14-[(pyrimidin-4-yl)oxy]decahydro-2H,10H-5,8-methano-2lambda~5~,10lambda~5~-cyclopenta[l][1,3,6,9,11,2,10]pentaoxadiphosphacyclotetradecine-2,10-dione (3 entities in total)
• Functional Keywords: immunotherapy, stimulator of interferon genes, cyclic dinucleotide, immune system
• Biological source: Homo sapiens (Human)
• Total number of polymer chains: 1
• Total formula weight: 27829.02

Authors

Skene, R.J. (deposition date: 2020-11-29, release date: 2022-02-09, Last modification date: 2023-10-18)

Primary citation

Vyskocil, S.,Cardin, D.,Ciavarri, J.,Conlon, J.,Cullis, C.,England, D.,Gershman, R.,Gigstad, K.,Gipson, K.,Gould, A.,Greenspan, P.,Griffin, R.,Gulavita, N.,Harrison, S.,Hu, Z.,Hu, Y.,Hata, A.,Huang, J.,Huang, S.C.,Janowick, D.,Jones, M.,Kolev, V.,Langston, S.P.,Lee, H.M.,Li, G.,Lok, D.,Ma, L.,Mai, D.,Malley, J.,Matsuda, A.,Mizutani, H.,Mizutani, M.,Molchanova, N.,Nunes, E.,Pusalkar, S.,Renou, C.,Rowland, S.,Sato, Y.,Shaw, M.,Shen, L.,Shi, Z.,Skene, R.,Soucy, F.,Stroud, S.,Xu, H.,Xu, T.,Abu-Yousif, A.O.,Zhang, J.
Identification of Novel Carbocyclic Pyrimidine Cyclic Dinucleotide STING Agonists for Antitumor Immunotherapy Using Systemic Intravenous Route.
J.Med.Chem., 64:6902-6923, 2021

PubMed Abstract: Stimulator of Interferon Genes (STING) plays an important role in innate immunity by inducing type I interferon production upon infection with intracellular pathogens. STING activation can promote increased T-cell activation and inflammation in the tumor microenvironment, resulting in antitumor immunity. Natural and synthetic cyclic dinucleotides (CDNs) are known to activate STING, and several synthetic CDN molecules are being investigated in the clinic using an intratumoral administration route. Here, we describe the identification of STING agonist , a cyclic dinucleotide structurally diversified from natural ligands with optimized properties for systemic intravenous (iv) administration. Our studies have shown that STING activation by leads to an acute innate immune response as measured by cytokine secretion and adaptive immune response via activation of CD8+ cytotoxic T-cells, which ultimately provides robust antitumor efficacy.

PubMed: 34000802
DOI: 10.1021/acs.jmedchem.1c00374

Experimental method

X-RAY DIFFRACTION (2.35 Å)