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{{STRUCTURE_4lev| PDB=4lev | SCENE= }} | |||
===Structure of human cGAS=== | |||
==Function== | |||
[[http://www.uniprot.org/uniprot/CGAS_HUMAN CGAS_HUMAN]] 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.<ref>PMID:21478870</ref> <ref>PMID:23258413</ref> | |||
==About this Structure== | |||
[[4lev]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4LEV OCA]. | |||
==Reference== | |||
<references group="xtra"/><references/> | |||
[[Category: Li, P.]] | |||
[[Category: Dna sensor]] | |||
[[Category: Ntase]] | |||
[[Category: Transferase]] | |||
Revision as of 13:26, 25 December 2013
Structure of human cGASStructure of human cGAS
FunctionFunction
[CGAS_HUMAN] 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.[1] [2]
About this StructureAbout this Structure
4lev is a 2 chain structure. Full crystallographic information is available from OCA.
ReferenceReference
- ↑ Schoggins JW, Wilson SJ, Panis M, Murphy MY, Jones CT, Bieniasz P, Rice CM. A diverse range of gene products are effectors of the type I interferon antiviral response. Nature. 2011 Apr 28;472(7344):481-5. doi: 10.1038/nature09907. Epub 2011 Apr 10. PMID:21478870 doi:10.1038/nature09907
- ↑ Sun L, Wu J, Du F, Chen X, Chen ZJ. Cyclic GMP-AMP synthase is a cytosolic DNA sensor that activates the type I interferon pathway. Science. 2013 Feb 15;339(6121):786-91. doi: 10.1126/science.1232458. Epub 2012, Dec 20. PMID:23258413 doi:10.1126/science.1232458