NPAS3

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Neuronal PAS domain protein 3
Identifiers
Symbol NPAS3
Alt. Symbols MEMBER OF PAS SUPERFAMILY 6; MOP6
Entrez 64067
HUGO 19311
OMIM 609430
RefSeq NM_173159
UniProt Q8IXF0
Other data
Locus Chr. 14 q13

NPAS3 or Neuronal PAS domain protein 3 is a brain-enriched transcription factor belonging to the bHLH-PAS superfamily of transcription factors, the members of which carry out diverse functions, including circadian oscillations, neurogenesis, toxin metabolism, hypoxia, and tracheal development. NPAS3 contains basic-helix-loop-helix structural motif and PAS domain, like the other proteins in the superfamily. Disruption of NPAS3 was found in one family affected by schizophrenia[1] and NPAS3 gene is thought to be associated with psychiatric illness and learning disability.[2][3] In a genetic study of several hundred subjects conducted in 2008, interacting haplotypes at the NPAS3 locus were found to affect the risk of schizophrenia and bipolar disorder.[4]

NPAS1 and NPAS3-deficient mice display behavioral abnormalities typical to the animal models of schizophrenia.[5]

According to the same study, NPAS1 and NPAS3 disruption leads to reduced expression of reelin, which is also consistently found to be reduced in the brains of human patients with schizophrenia and psychotic bipolar disorder. Among the 49 genomic regions that undergone rapid changes in humans compared with their evolutionary ancestors, NPAS3 was found to be located in the region 21.[6]

In a pharmacogenetical study, polymorphisms in NPAS3 gene were highly associated with response to iloperidone, a proposed atypical antipsychotic.[7]

[edit] References

  1. ^ Kamnasaran D, Muir WJ, Ferguson-Smith MA, Cox DW (2003). "Disruption of the neuronal PAS3 gene in a family affected with schizophrenia". J. Med. Genet. 40 (5): 325–32. PMID 12746393. 
  2. ^ Pickard BS, Malloy MP, Porteous DJ, Blackwood DH, Muir WJ (2005). "Disruption of a brain transcription factor, NPAS3, is associated with schizophrenia and learning disability". Am. J. Med. Genet. B Neuropsychiatr. Genet. 136 (1): 26–32. doi:10.1002/ajmg.b.30204. PMID 15924306. 
  3. ^ Pickard BS, Pieper AA, Porteous DJ, Blackwood DH, Muir WJ (2006). "The NPAS3 gene--emerging evidence for a role in psychiatric illness". Ann. Med. 38 (6): 439–48. doi:10.1080/07853890600946500. PMID 17008307. 
  4. ^ Pickard BS, Christoforou A, Thomson PA, Fawkes A, Evans KL, Morris SW, Porteous DJ, Blackwood DH, Muir WJ (2008). "Interacting haplotypes at the NPAS3 locus alter risk of schizophrenia and bipolar disorder". Mol. Psychiatry. doi:10.1038/mp.2008.24. PMID 18317462. 
  5. ^ Erbel-Sieler C, Dudley C, Zhou Y, et al (2004). "Behavioral and regulatory abnormalities in mice deficient in the NPAS1 and NPAS3 transcription factors". Proc. Natl. Acad. Sci. U.S.A. 101 (37): 13648–53. doi:10.1073/pnas.0405310101. PMID 15347806. 
  6. ^ Pollard KS, Salama SR, Lambert N, et al (2006). "An RNA gene expressed during cortical development evolved rapidly in humans". Nature 443 (7108): 167–72. doi:10.1038/nature05113. PMID 16915236. 
  7. ^ Lavedan C, Volpi S, Mack K, et al. Whole-genome association study identifies polymorphisms in the NPAS3 gene associated with super-response to iloperidone treatment in patients with schizophrenia. Program and abstracts of the 57th Annual Meeting of the American Society of Human Genetics; October 23-27, 2007; San Diego, California. Abstract 1035/T
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