CSK promotes innate immune response to DNA virus by phosphorylating MITA.
[No authors listed]
摘要
Upon detection of viral DNA, the cytoplasmic DNA sensor cyclic GMP-AMP (cGAMP) synthase (cGAS) utilizes GTP and ATP as substrates to synthesize the second messenger molecule 2'3'cyclic GMP-AMP (cGAMP), which binds to the ER-associated adaptor protein MITA/STING to signal innate antiviral response to DNA virus. How the cGAS-MITA pathways are post-translationally regulated is not fully understood. In this study, we identified the tyrosine kinase CSK as a positive regulator of cGAS-MITA mediated innate antiviral response. CSK-deficiency inhibits DNA virus-triggered induction of downstream antiviral effector genes. Following DNA virus infection, CSK phosphorylates MITA at Y240 and Y245, which is important for its activation. These results suggest that CSK plays a role in modulating innate immune response to DNA virus.
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基因功能
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原始数据
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文献解读
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