The NFIB gene is a part of the NFI gene complex that includes three other genes (NFIA, NFIC and NFIX). The NFIB gene is a protein coding gene that also serves as a transcription factor. This gene is essential in embryonic development and it works together with its gene complex to initiate tissue differentiation in the fetus. NFIB has the highest concentrations in the lung, skeletal muscle and heart but is also found in the areas of the developing liver, kidneys and brain.
Through knockout experiments, researchers found that mice without the NFIB gene have severely underdeveloped lungs. This mutation does not seem to cause spontaneous abortions because in utero the fetus does not use its lungs for respiration. However, this becomes lethal once the fetus is born and has to take its first breath. It is thought that NFIB plays a role in down regulating the transcription factors TGF-β1 and Shh in normal gestation because they remained high in knockout experiments. The absence of NFIB also leads to insufficient amounts of surfactant being produced which is one reason why the mice cannot breathe once it is born. The knockout experiments demonstrated that NFIB has a significant role in fore-brain development. NFIB is typically found in pontine nuclei of the CNS, the cerebral cortex and the white matter of the brain and without NFIB these areas are dramatically affected.
Absence of one copy is associated with macrocephaly and intellectual disability. This associated was confirmed in mouse modelswhere deletion of one copy resulted in enlargement of the brain while preserving its overall organisation.
- Chaudhry, Ali Z.; Lyons, Gary E.; Gronostajski, Richard M. (1997-03-01). "Expression patterns of the four nuclear factor I genes during mouse embryogenesis indicate a potential role in development". Developmental Dynamics. 208 (3): 313–325. doi:10.1002/(SICI)1097-0177(199703)208:33.0.CO;2-L (inactive 2018-12-29). ISSN 1097-0177.
- Gründer, Albert; Ebel, Thorsten T.; Mallo, Moisés; Schwarzkopf, Georg; Shimizu, Takehiko; Sippel, Albrecht E.; Schrewe, Heinrich (2002-03-01). "Nuclear factor I-B (Nfib) deficient mice have severe lung hypoplasia". Mechanisms of Development. 112 (1–2): 69–77. doi:10.1016/S0925-4773(01)00640-2. PMID 11850179.
- Database, GeneCards Human Gene. "NFIB Gene - GeneCards | NFIB Protein | NFIB Antibody". www.genecards.org. Retrieved 2017-04-09.
- Steele-Perkins, George; Plachez, Céline; Butz, Kenneth G.; Yang, Guanhu; Bachurski, Cindy J.; Kinsman, Stephen L.; Litwack, E. David; Richards, Linda J.; Gronostajski, Richard M. (2005-01-15). "The Transcription Factor Gene Nfib Is Essential for both Lung Maturation and Brain Development". Molecular and Cellular Biology. 25 (2): 685–698. doi:10.1128/MCB.25.2.685-698.2005. ISSN 0270-7306. PMC 543431. PMID 15632069.
- Schanze I, Bunt J, Lim JWC, Schanze D, Dean RJ, Alders M, Blanchet P, Attié-Bitach T, Berland S, Boogert S, Boppudi S, Bridges CJ, Cho MT8, Dobyns WB, Donnai D, Douglas J, Earl DL, Edwards TJ, Faivre L, Fregeau B, Genevieve D, Gérard M, Gatinois V, Holder-Espinasse M, Huth SF, Izumi K, Kerr B, Lacaze E, Lakeman P, Mahida S, Mirzaa GM, Morgan SM, Nowak C, Peeters H, Petit F, Pilz DT, Puechberty J5, Reinstein E, Rivière JB, Santani AB, Schneider A, Sherr EH, Smith-Hicks C, Wieland I, Zackai E, Zhao X, Gronostajski RM, Zenker M, Richards LJ (2018) NFIB Haploinsufficiency Is Associated with Intellectual Disability and Macrocephaly. Am J Hum Genet 103(5):752-768 doi: 10.1016/j.ajhg.2018.10.006.
- Qian F, Kruse U, Lichter P, Sippel AE (Dec 1995). "Chromosomal localization of the four genes (NFIA, B, C, and X) for the human transcription factor nuclear factor I by FISH". Genomics. 28 (1): 66–73. doi:10.1006/geno.1995.1107. PMID 7590749.
- "Entrez Gene: NFIB nuclear factor I/B".
- Liu Y, Bernard HU, Apt D (1997). "NFI-B3, a novel transcriptional repressor of the nuclear factor I family, is generated by alternative RNA processing". J. Biol. Chem. 272 (16): 10739–45. doi:10.1074/jbc.272.16.10739. PMID 9099724.
- Geurts JM, Schoenmakers EF, Röijer E, et al. (1998). "Identification of NFIB as recurrent translocation partner gene of HMGIC in pleomorphic adenomas". Oncogene. 16 (7): 865–72. doi:10.1038/sj.onc.1201609. PMID 9484777.
- Strausberg RL, Feingold EA, Grouse LH, et al. (2003). "Generation and initial analysis of more than 15,000 full-length human and mouse cDNA sequences". Proc. Natl. Acad. Sci. U.S.A. 99 (26): 16899–903. doi:10.1073/pnas.242603899. PMC 139241. PMID 12477932.
- Norquay LD, Yang X, Sheppard P, et al. (2003). "RFX1 and NF-1 associate with P sequences of the human growth hormone locus in pituitary chromatin". Mol. Endocrinol. 17 (6): 1027–38. doi:10.1210/me.2003-0025. PMID 12624117.
- Sheeter D, Du P, Rought S, et al. (2003). "Surface CD4 expression modulated by a cellular factor induced by HIV type 1 infection". AIDS Res. Hum. Retroviruses. 19 (2): 117–23. doi:10.1089/088922203762688621. PMID 12639247.
- Ota T, Suzuki Y, Nishikawa T, et al. (2004). "Complete sequencing and characterization of 21,243 full-length human cDNAs". Nat. Genet. 36 (1): 40–5. doi:10.1038/ng1285. PMID 14702039.
- Gerhard DS, Wagner L, Feingold EA, et al. (2004). "The Status, Quality, and Expansion of the NIH Full-Length cDNA Project: The Mammalian Gene Collection (MGC)". Genome Res. 14 (10B): 2121–7. doi:10.1101/gr.2596504. PMC 528928. PMID 15489334.
- Rual JF, Venkatesan K, Hao T, et al. (2005). "Towards a proteome-scale map of the human protein-protein interaction network". Nature. 437 (7062): 1173–8. doi:10.1038/nature04209. PMID 16189514.
- Kimura K, Wakamatsu A, Suzuki Y, et al. (2006). "Diversification of transcriptional modulation: Large-scale identification and characterization of putative alternative promoters of human genes". Genome Res. 16 (1): 55–65. doi:10.1101/gr.4039406. PMC 1356129. PMID 16344560.
- Mukhopadhyay SS, Rosen JM (2007). "The C-terminal domain of the Nuclear Factor I-B2 isoform is glycosylated and transactivates the WAP gene in the JEG-3 cells". Biochem. Biophys. Res. Commun. 358 (3): 770–6. doi:10.1016/j.bbrc.2007.04.185. PMC 1942171. PMID 17511965.
|This article on a gene on human chromosome 9 is a stub. You can help Wikipedia by expanding it.|