Role of Post-Translational Modifications of cGAS in Innate Immunity

Cyclic GMP–AMP synthase (cGAS) is the synthase that generates the second messenger cyclic GMP–AMP (cGAMP) upon DNA binding. cGAS was first discovered as the cytosolic DNA sensor that detects DNA exposed in the cytoplasm either from pathogens or cellular damage. Activated cGAS instigates the signalin...

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Main Authors: Yakun Wu, Shitao Li
Format: Article
Language:English
Published: MDPI AG 2020-10-01
Series:International Journal of Molecular Sciences
Subjects:
Online Access:https://www.mdpi.com/1422-0067/21/21/7842
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author Yakun Wu
Shitao Li
author_facet Yakun Wu
Shitao Li
author_sort Yakun Wu
collection DOAJ
description Cyclic GMP–AMP synthase (cGAS) is the synthase that generates the second messenger cyclic GMP–AMP (cGAMP) upon DNA binding. cGAS was first discovered as the cytosolic DNA sensor that detects DNA exposed in the cytoplasm either from pathogens or cellular damage. Activated cGAS instigates the signaling cascades to activate type I interferon (IFN) expression, critical for host defense and autoimmune diseases. In addition, cGAS plays a role in senescence, DNA repair, apoptosis, and tumorigenesis. Recently, various post-translational modifications (PTMs) of cGAS have been reported, such as phosphorylation, ubiquitination, acetylation, glutamylation, and sumoylation. These PTMs profoundly affect cGAS functions. Thus, here we review the recent reported PTMs of cGAS and how these PTMs regulate cGAS enzymatic activity, DNA binding, and protein stability, and discuss the potential future directions.
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spelling doaj.art-71a6b9da334142029c8a776eec56fa4d2023-11-20T18:10:02ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672020-10-012121784210.3390/ijms21217842Role of Post-Translational Modifications of cGAS in Innate ImmunityYakun Wu0Shitao Li1Department of Microbiology and Immunology, Tulane University, New Orleans, LA 70118, USADepartment of Microbiology and Immunology, Tulane University, New Orleans, LA 70118, USACyclic GMP–AMP synthase (cGAS) is the synthase that generates the second messenger cyclic GMP–AMP (cGAMP) upon DNA binding. cGAS was first discovered as the cytosolic DNA sensor that detects DNA exposed in the cytoplasm either from pathogens or cellular damage. Activated cGAS instigates the signaling cascades to activate type I interferon (IFN) expression, critical for host defense and autoimmune diseases. In addition, cGAS plays a role in senescence, DNA repair, apoptosis, and tumorigenesis. Recently, various post-translational modifications (PTMs) of cGAS have been reported, such as phosphorylation, ubiquitination, acetylation, glutamylation, and sumoylation. These PTMs profoundly affect cGAS functions. Thus, here we review the recent reported PTMs of cGAS and how these PTMs regulate cGAS enzymatic activity, DNA binding, and protein stability, and discuss the potential future directions.https://www.mdpi.com/1422-0067/21/21/7842cGASinnate immunitypost-translational modificationphosphorylationubiquitinationacetylation
spellingShingle Yakun Wu
Shitao Li
Role of Post-Translational Modifications of cGAS in Innate Immunity
International Journal of Molecular Sciences
cGAS
innate immunity
post-translational modification
phosphorylation
ubiquitination
acetylation
title Role of Post-Translational Modifications of cGAS in Innate Immunity
title_full Role of Post-Translational Modifications of cGAS in Innate Immunity
title_fullStr Role of Post-Translational Modifications of cGAS in Innate Immunity
title_full_unstemmed Role of Post-Translational Modifications of cGAS in Innate Immunity
title_short Role of Post-Translational Modifications of cGAS in Innate Immunity
title_sort role of post translational modifications of cgas in innate immunity
topic cGAS
innate immunity
post-translational modification
phosphorylation
ubiquitination
acetylation
url https://www.mdpi.com/1422-0067/21/21/7842
work_keys_str_mv AT yakunwu roleofposttranslationalmodificationsofcgasininnateimmunity
AT shitaoli roleofposttranslationalmodificationsofcgasininnateimmunity