4k97 | pdb_00004k97
From Proteopedia
Structure of Ternary Complex of cGAS with dsDNA and Bound ATP
Template:ABSTRACT PUBMED 23647843
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
4k97 is a 3 chain structure with sequence from Mus musculus. Full crystallographic information is available from OCA.
Reference
- Gao P, Ascano M, Wu Y, Barchet W, Gaffney BL, Zillinger T, Serganov AA, Liu Y, Jones RA, Hartmann G, Tuschl T, Patel DJ. Cyclic [G(2',5')pA(3',5')p] is the metazoan second messenger produced by DNA-activated cyclic GMP-AMP synthase. Cell. 2013 May 23;153(5):1094-107. doi: 10.1016/j.cell.2013.04.046. Epub 2013 May, 3. PMID:23647843 doi:10.1016/j.cell.2013.04.046
