This gene is part of a 500 kb inverted duplication on chromosome 5q13. This duplicated region contains at least four genes and repetitive elements which make it prone to rearrangements and deletions. The repetitiveness and complexity of the sequence have also caused difficulty in determining the organization of this genomic region. This copy of the gene is full length\; additional copies with truncations and internal deletions are also present in this region of chromosome 5q13. It is thought that this gene is a modifier of spinal muscular atrophy caused by mutations in a neighboring gene, SMN1. The protein encoded by this gene contains regions of homology to two baculovirus inhibitor of apoptosis proteins, and it is able to suppress apoptosis induced by various signals. Alternatively spliced transcript variants encoding distinct isoforms have been found for this gene. [provided by RefSeq, Jul 2008].
Verma, Gupta, Kumar, Yadav, Dhanda, Gaind, Arora, Frimodt-Møller, Yadav: "Involvement of NLRP3 and NLRC4 Inflammasome in Uropathogenic E. coli Mediated Urinary Tract Infections." in: Frontiers in microbiology, Vol. 10, pp. 2020, (2019) (PubMed).
Vinzing, Eitel, Lippmann, Hocke, Zahlten, Slevogt, Nguessan, Günther, Schmeck, Hippenstiel, Flieger, Suttorp, Opitz: "NAIP and Ipaf control Legionella pneumophila replication in human cells." in: Journal of immunology (Baltimore, Md. : 1950), Vol. 180, Issue 10, pp. 6808-15, (2008) (PubMed).
Davoodi, Lin, Kelly, Liston, MacKenzie: "Neuronal apoptosis-inhibitory protein does not interact with Smac and requires ATP to bind caspase-9." in: The Journal of biological chemistry, Vol. 279, Issue 39, pp. 40622-8, (2004) (PubMed).
Liston, Fong, Korneluk: "The inhibitors of apoptosis: there is more to life than Bcl2." in: Oncogene, Vol. 22, Issue 53, pp. 8568-80, (2003) (PubMed).
Notarbartolo, Cervello, Dusonchet, DAlessandro: "NAIP-deltaEx10-11: a novel splice variant of the apoptosis inhibitor NAIP differently expressed in drug-sensitive and multidrug-resistant HL60 leukemia cells." in: Leukemia research, Vol. 26, Issue 9, pp. 857-62, (2002) (PubMed).