Structural mechanism of cytosolic DNA sensing by cGAS
2013
Cytosolic DNA arising from intracellular bacterial or viral infections induces type I interferon through activation of the DNA sensor cGAS, which catalyses the synthesis of cyclic dinucleotide which in turn activates STING; here the crystal structures of a carboxy-terminal fragment of cGAS alone and in complex with UTP and DNA–ATP–GTP complex are determined.
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