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Cyclic GMP-AMP Is an Endogenous Second Messenger in Innate Immune Signaling by Cytosolic DNA

Open access
Wu, Jiaxi, Sun, Lijun, Chen, Xiang, Du, Fenghe, Shi, Heping, Chen, Chuo, Chen, Zhijian J.·2013·Science

Abstract

DNA Sensing Is a (c)GAS: DNA is normally localized to the nucleus, and so its cytoplasmic localization sends off alarm bells to the immune system because it indicates that a virus may have entered. But how does the immune system actually detect the DNA (see the Perspective by O'Neill )? Sun et al. (p. 786 , published online 20 December) identify cyclic GMP-AMP (cGAMP) cyclase (cGAS), which can bind to cytoplasmic DNA directly and catalyze the production of cGAMP. cGAMP then acts as a second messenger to activate downstream signaling events that trigger antiviral immunity. Wu et al. (p. 826 , published online 20 December) show that cGAMP, produced in response to cytoplasmic DNA, binds to and activates the signaling adaptor protein STING.

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Metadata

Authors
Wu, J., Sun, L., Chen, X., Du, F., Shi, H., Chen, C., & Chen, Z. J.
Venue
Science
Published
2013-02-15
Volume
339
Issue
6121
Pages
826-830
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2154171253
Cited by
2,541
References
4
FWCI
34.39
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Cyclic GMP-AMP Is an Endogenous Second Messenger in Innate Immune Signaling by Cytosolic DNA. https://app.cochat.ai/papers/10.1126/science.1229963
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Wu, J., Sun, L., Chen, X., Du, F., Shi, H., Chen, C., & Chen, Z. J. (2013). Cyclic GMP-AMP Is an Endogenous Second Messenger in Innate Immune Signaling by Cytosolic DNA. Science. https://doi.org/10.1126/science.1229963

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