NLRP3 Rabbit Polyclonal Antibody

功能

NLR family pyrin domain containing 3 (NLRP3) (previously known as NACHT, LRR and PYD domains-containing protein 3 [NALP3] and cryopyrin), is a protein that in humans is encoded by the NLRP3 gene located on the long arm of chromosome 1. NLRP3 is expressed predominantly in macrophages and as a component of the inflammasome, products of damaged cells such as extracellular ATP and crystalline uric acid. Activated NLRP3 in turn triggers an immune response. Mutations in the NLRP3 gene are associated with a number of organ specific autoimmune diseases. Cryopyrin interacts selectively with apoptosis associated specklike protein containing a CARD domain (ASC). This complex may function as an upstream activator of NFkB signaling and caspase-1 activation. The complex also inhibits TNFa induced activation and nuclear translocation of RelA/NFkB p65. Mutations in Cryopyrin and Pyrin proteins are responsible for several autoinflammatory disorders in humans, including familial cold autoinflammatory syndrome (FCAS), Muckle-Wells syndrome (MWS) and chronic infantile neurologic cutaneous and articular syndrome (CINCA).

背景文献

1. Biasizzo M et al. Interplay Between NLRP3 Inflammasome and Autophagy. Front Immunol. 2020 Oct

2. Seoane PI et al. The NLRP3-inflammasome as a sensor of organelle dysfunction. J Cell Biol. 2020 Dec

序列相似性

Belongs to the NLRP family.

组织特异性

Predominantly expressed in macrophages. Also expressed in dendritic cells, B- and T-cells (at protein level). Expressed in LPS-treated granulocytes, but not in resting cells (at protein level). Expression in monocytes is very weak (at protein level). Expressed in stratified non-keratinizing squamous epithelium, including oral, esophageal and ectocervical mucosa and in the Hassall's corpuscles in the thymus. Also, detected in the stratified epithelium covering the bladder and ureter (transitional mucosa) (at protein level). Expressed in lung epithelial cells (at protein level). Expressed in chondrocytes. Expressed at low levels in resting osteoblasts.

翻译后修饰

The disulfide bond in the pyrin domain might play a role in reactive oxygen species-mediated activation.; Ubiquitinated; undergoes both 'Lys-48'- and 'Lys-63'-linked polyubiquitination. Ubiquitination does not lead to degradation, but inhibits inflammasome activation (By similarity). Deubiquitination is catalyzed by BRCC3 and associated with NLRP3 activation and inflammasome assembly. This process can be induced by the activation of Toll-like receptors (by LPS), through a non-transcriptional pathway dependent on the mitochondrial production of reactive oxygen species, and by ATP.

亚细胞定位

Nucleus. Cytoplasm. Secreted.

UNIPROT

SwissProt: Q96P20 Human

SwissProt: Q8R4B8 Mouse

别名