NACHT, LRR and PYD domains-containing protein 1 (NLRP1)

As the sensor part of this NLRP1 inflammasome, plays an essential role in innate immunity and inflammation. In response to pathogens and other damage-associated signs, initiates the creation of the inflammasome polymeric complex, made from NLRP1, CASP1, and possibly PYCARD.

Activation of NLRP1 inflammasome is also needed for HMGB1 secretion. The active cytokines and HMGB1 stimulate inflammatory responses.