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7t9u

From Proteopedia

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Current revision

Crystal structure of hSTING with an agonist (SHR169224)

Structural highlights

7t9u is a 1 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	X-ray diffraction, Resolution 2.46Å
Ligands:	,
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

STING_HUMAN Facilitator of innate immune signaling that acts as a sensor of cytosolic DNA from bacteria and viruses and promotes the production of type I interferon (IFN-alpha and IFN-beta). Innate immune response is triggered in response to non-CpG double-stranded DNA from viruses and bacteria delivered to the cytoplasm. Acts by recognizing and binding cyclic di-GMP (c-di-GMP), a second messenger produced by bacteria, and cyclic GMP-AMP (cGAMP), a messenger produced in response to DNA virus in the cytosol: upon binding of c-di-GMP or cGAMP, autoinhibition is alleviated and TMEM173/STING is able to activate both NF-kappa-B and IRF3 transcription pathways to induce expression of type I interferon and exert a potent anti-viral state. May be involved in translocon function, the translocon possibly being able to influence the induction of type I interferons. May be involved in transduction of apoptotic signals via its association with the major histocompatibility complex class II (MHC-II). Mediates death signaling via activation of the extracellular signal-regulated kinase (ERK) pathway.^[1] ^[2] ^[3] ^[4] ^[5] ^[6] ^[7]

Publication Abstract from PubMed

Stimulator of interferon genes (STING) activation induces type I interferons and pro-inflammatory cytokines which stimulate tumor antigen cross presentation and the adaptive immune responses against tumor. The first-generation of STING agonists, cyclic di-nucleotide (CDN), mimicked the endogenous STING ligand cyclic guanosine monophosphate adenosine monophosphate, and displayed limited clinical efficacy. Here we report the discovery of SHR1032, a novel small molecule non-CDN STING agonist. Compared to the clinical CDN STING agonist ADU-S100, SHR1032 has much higher activity in human cells with different STING haplotypes and robustly induces interferon beta (IFNbeta) production. When dosed intratumorally, SHR1032 induced strong anti-tumor effects in the MC38 murine syngeneic tumor model. Pharmacodynamic studies showed induction of IFNbeta, tumor necrosis factor alpha (TNFalpha) and interleukin-6 (IL-6) in the tumors and, to a lower extent, in the plasma. More importantly, we found SHR1032 directly causes cell death in acute myeloid leukemia (AML) cells. In conclusion, our findings demonstrate that in addition to their established ability to boost anti-tumor immune responses, STING agonists can directly eradicate AML cells, and SHR1032 may present a new and promising therapeutic agent for cancer patients.

SHR1032, a novel STING agonist, stimulates anti-tumor immunity and directly induces AML apoptosis.,Song C, Liu D, Liu S, Li D, Horecny I, Zhang X, Li P, Chen L, Miller M, Chowdhury R, Issa M, Shen R, Yan Y, Zhang F, Zhang L, Zhang L, Bai C, Feng J, Zhuang L, Zhang R, Li J, Wilkinson H, Liu J, Tao W Sci Rep. 2022 May 20;12(1):8579. doi: 10.1038/s41598-022-12449-1. PMID:35595822^[8]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Zhong B, Yang Y, Li S, Wang YY, Li Y, Diao F, Lei C, He X, Zhang L, Tien P, Shu HB. The adaptor protein MITA links virus-sensing receptors to IRF3 transcription factor activation. Immunity. 2008 Oct 17;29(4):538-50. doi: 10.1016/j.immuni.2008.09.003. Epub 2008 , Sep 25. PMID:18818105 doi:10.1016/j.immuni.2008.09.003
↑ Ishikawa H, Barber GN. STING is an endoplasmic reticulum adaptor that facilitates innate immune signalling. Nature. 2008 Oct 2;455(7213):674-8. doi: 10.1038/nature07317. Epub 2008 Aug 24. PMID:18724357 doi:10.1038/nature07317
↑ Ishikawa H, Ma Z, Barber GN. STING regulates intracellular DNA-mediated, type I interferon-dependent innate immunity. Nature. 2009 Oct 8;461(7265):788-92. doi: 10.1038/nature08476. Epub 2009 Sep 23. PMID:19776740 doi:10.1038/nature08476
↑ Sun W, Li Y, Chen L, Chen H, You F, Zhou X, Zhou Y, Zhai Z, Chen D, Jiang Z. ERIS, an endoplasmic reticulum IFN stimulator, activates innate immune signaling through dimerization. Proc Natl Acad Sci U S A. 2009 May 26;106(21):8653-8. doi:, 10.1073/pnas.0900850106. Epub 2009 May 11. PMID:19433799 doi:10.1073/pnas.0900850106
↑ Tsuchida T, Zou J, Saitoh T, Kumar H, Abe T, Matsuura Y, Kawai T, Akira S. The ubiquitin ligase TRIM56 regulates innate immune responses to intracellular double-stranded DNA. Immunity. 2010 Nov 24;33(5):765-76. doi: 10.1016/j.immuni.2010.10.013. Epub 2010 , Nov 11. PMID:21074459 doi:10.1016/j.immuni.2010.10.013
↑ Burdette DL, Monroe KM, Sotelo-Troha K, Iwig JS, Eckert B, Hyodo M, Hayakawa Y, Vance RE. STING is a direct innate immune sensor of cyclic di-GMP. Nature. 2011 Sep 25;478(7370):515-8. doi: 10.1038/nature10429. PMID:21947006 doi:10.1038/nature10429
↑ Wu J, Sun L, Chen X, Du F, Shi H, Chen C, Chen ZJ. Cyclic GMP-AMP is an endogenous second messenger in innate immune signaling by cytosolic DNA. Science. 2013 Feb 15;339(6121):826-30. doi: 10.1126/science.1229963. Epub 2012, Dec 20. PMID:23258412 doi:10.1126/science.1229963
↑ Song C, Liu D, Liu S, Li D, Horecny I, Zhang X, Li P, Chen L, Miller M, Chowdhury R, Issa M, Shen R, Yan Y, Zhang F, Zhang L, Zhang L, Bai C, Feng J, Zhuang L, Zhang R, Li J, Wilkinson H, Liu J, Tao W. SHR1032, a novel STING agonist, stimulates anti-tumor immunity and directly induces AML apoptosis. Sci Rep. 2022 May 20;12(1):8579. doi: 10.1038/s41598-022-12449-1. PMID:35595822 doi:http://dx.doi.org/10.1038/s41598-022-12449-1

1 Structural highlights
2 Function
3 Publication Abstract from PubMed
4 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/7t9u"

Categories: Homo sapiens | Large Structures | Chowdhury R | Miller M

@@ Line 4: / Line 4: @@
 == Structural highlights ==
 <table><tr><td colspan='2'>[[7t9u]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7T9U OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7T9U FirstGlance]. <br>
-</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=GD2:(3S,4S)-2-[(1-ethyl-3-methyl-1H-pyrazole-5-carbonyl)amino]-4-(prop-2-en-1-yl)-4,5-dihydroimidazo[1,5,4-de][1,4]benzoxazine-8-carboxamide'>GD2</scene></td></tr>
+</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.46&#8491;</td></tr>
+<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=GD2:(3S,4S)-2-[(1-ethyl-3-methyl-1H-pyrazole-5-carbonyl)amino]-4-(prop-2-en-1-yl)-4,5-dihydroimidazo[1,5,4-de][1,4]benzoxazine-8-carboxamide'>GD2</scene></td></tr>
 <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=7t9u FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7t9u OCA], [https://pdbe.org/7t9u PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7t9u RCSB], [https://www.ebi.ac.uk/pdbsum/7t9u PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7t9u ProSAT]</span></td></tr>
 </table>

7t9u

From Proteopedia

Current revision

Crystal structure of hSTING with an agonist (SHR169224)

Structural highlights

Function

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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