Defining the functional determinants for RNA surveillance by RIG-I

Retinoic acid‐inducible gene‐I (RIG‐I) is an intracellular RNA sensor that activates the innate immune machinery in response to infection by RNA viruses. Here, we report the crystal structure of distinct conformations of a RIG‐I:dsRNA complex, which shows that HEL2i‐mediated scanning allows RIG‐I to...

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