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Cyclic GMP-AMP synthase : ウィキペディア英語版 | Cyclic GMP-AMP synthase
Cyclic GMP-AMP synthase (cGAS, cGAMP synthase), belonging to the nucleotidyltransferase family, is a cytosolic DNA sensor that activates the type-I interferon pathway. It binds to microbial DNA as well as self DNA that invades the cytoplasm, and catalyzes cGAMP synthesis. cGAMP then functions as a second messenger that binds to and activates the endoplasmic reticulum protein STING to trigger type-I IFNs production. Mice lacking cGAS were more vulnerable to lethal infection by DNA viruses. In addition, cGAS has been shown to be an innate immune sensor of retroviruses including HIV. == References ==
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