The AIM2 inflammasome
收藏reactome.org2025-01-21 收录
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https://reactome.org/PathwayBrowser/#/R-HSA-844615
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AIM2 is a member of the PYHIN or HIN200 family. It has a C-terminal HIN domain which can bind double-stranded DNA (dsDNA) and a PYD domain that can bind ASC via a PYD-PYD interaction. In cells expressing procaspase-1, The interaction of AIM2 with ASC leads to recruitment of procaspase-1 forming the ASC pyroptosome which induces pyroptotic cell death by generating active caspase-1. Data from AIM2 deficient mice indicates that the AIM2 inflammasome is a nonredundant sensor for dsDNA that regulates the caspase-1-dependent maturation of IL-1beta and IL-18 (Rathinam et al. 2010, Hornung & Latz, 2009).
AIM2属PYHIN或HIN200家族成员。该蛋白具有C端HIN结构域,能够与双链DNA(dsDNA)结合,并拥有PYD结构域,可通过PYD-PYD相互作用与ASC结合。在表达前caspase-1的细胞中,AIM2与ASC的相互作用导致前caspase-1的募集,形成ASC焦亡体,通过产生活性caspase-1诱导焦亡性细胞死亡。AIM2缺陷小鼠的数据表明,AIM2炎症小体是dsDNA的非冗余传感器,调节caspase-1依赖性IL-1beta和IL-18的成熟(Rathinam等,2010,Hornung与Latz,2009)
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