4lez

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Template:STRUCTURE 4lez

Contents

Structure of mouse cGAS bound to an 18bp DNA and cGAS product

Template:ABSTRACT PUBMED 24332030

Function

[CGAS_MOUSE] Nucleotidyltransferase that catalyzes formation of cyclic GMP-AMP (cGAMP) from ATP and GTP and exhibits antiviral activity. Has antiviral activity by acting as a key cytosolic DNA sensor, the presence of DNA in the cytoplasm being a danger signal that triggers the immune responses. Binds cytosolic DNA directly, leading to activation and synthesis of cGAMP, a second messenger that binds to and activates TMEM173/STING, thereby triggering type-I interferon production.

About this Structure

4lez is a 6 chain structure. Full crystallographic information is available from OCA.

Reference

  • Li X, Shu C, Yi G, Chaton CT, Shelton CL, Diao J, Zuo X, Kao CC, Herr AB, Li P. Cyclic GMP-AMP Synthase Is Activated by Double-Stranded DNA-Induced Oligomerization. Immunity. 2013 Dec 12;39(6):1019-31. doi: 10.1016/j.immuni.2013.10.019. PMID:24332030 doi:http://dx.doi.org/10.1016/j.immuni.2013.10.019

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