Cyclic GMP-AMP synthase is a cytosolic DNA sensor that activates the type I interferon pathway.
Cyclic GMP-AMP synthase is a cytosolic DNA sensor that activates the type I interferon pathway.
复制标题
环状GMP-AMP合酶是一种激活I型干扰素途径的胞质DNA传感器。
DOI:
10.1126/science.1232458
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发表时间:
2013-02-15
期刊:
影响因子:
--
通讯作者:
Chen ZJ
中科院分区:
文献类型:
--
作者:
Sun L;Wu J;Du F;Chen X;Chen ZJ
The presence of DNA in the cytoplasm of mammalian cells is a danger signal that triggers the host immune responses such as the production of type-I interferons (IFN). Cytosolic DNA induces IFN through the production of cyclic-GMP-AMP (cGAMP), which binds to and activates the adaptor protein STING. Through biochemical fractionation and quantitative mass spectrometry, we identified a cGAMP synthase (cGAS), which belongs to the nucleotidyltransferase family. Overexpression of cGAS activated the transcription factor IRF3 and induced IFNβ in a STING-dependent manner. Knockdown of cGAS inhibited IRF3 activation and IFNβ induction by DNA transfection or DNA virus infection. cGAS bound to DNA in the cytoplasm and catalyzed cGAMP synthesis. These results indicate that cGAS is a cytosolic DNA sensor that induces interferons by producing the second messenger cGAMP.
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影响因子:
32.4
作者:
Sharma S;DeOliveira RB;Kalantari P;Parroche P;Goutagny N;Jiang Z;Chan J;Bartholomeu DC;Lauw F;Hall JP;Barber GN;Gazzinelli RT;Fitzgerald KA;Golenbock DT
通讯作者:
Golenbock DT
影响因子:
14.9
作者:
Kuchta K;Knizewski L;Wyrwicz LS;Rychlewski L;Ginalski K
通讯作者:
Ginalski K
DOI:
10.1126/science.1229963
发表时间:
2013-02-15
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Wu J;Sun L;Chen X;Du F;Shi H;Chen C;Chen ZJ
通讯作者:
Chen ZJ
影响因子:
14.9
作者:
Pei J;Kim BH;Grishin NV
通讯作者:
Grishin NV
影响因子:
64.8
作者:
Takaoka, Akinori;Wang, ZhiChao;Taniguchi, Tadatsugu
通讯作者:
Taniguchi, Tadatsugu