An NLR protein that contains an N-terminal PYRIN DOMAIN and ATP-binding site and 9 C-terminal LEUCINE-rich repeats; it is expressed primarily by MACROPHAGES. It is a core component of the INFLAMMASOME and directs its assembly in response to pathogen infection and damage-associated stimuli. Mutations in the NLRP3 gene are associated with FAMILIAL COLD AUTOINFLAMMATORY SYNDROME.
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