NLR family pyrin domain-containing protein 2B (NLRP2B)

NLR family pyrin domain-containing protein 2B (NLRP2B) is a putative protein in humans. It is classified as a member of the pyrin-only protein (POP) family, specifically named POP4 in some literature, and is encoded by the NLRP2B gene. It is a negative regulator of the transcription factor NF-κB, acting by inhibiting RELA/p65 phosphorylation at Ser-536, which decreases transcriptional activity. Through inhibition of NF-κB, NLRP2B is thought to modulate cytokine release following toll-like receptor activation, thereby impacting innate immune responses and inflammation. The functional relevance of NLRP2B in human disease is unclear, as it is considered to be a pseudogene by some resources, and evidence for interactions with drugs or therapeutic interventions is lacking. Its most studied role is as an intracellular checkpoint that restrains inflammation by counteracting key signaling events in immune cells. NLRP2B is primarily located in the cytoplasm and nucleus and may also be involved in cell cycle regulation and apoptosis. Despite aliases and functional predictions, there is uncertainty regarding its status as a functional protein in humans, and it is not currently considered a bona fide therapeutic target[1][3][4][5][7][9][10].

Other names

CLRX.1NALP2PNLRP2PNOD24POP4Pyrin-only protein 4NLR family and pyrin domain-containing 2 pseudogeneNOD24 pseudogenePyrin domain-containing protein 2-like protein POP4