The specific function of this protein has yet to be determined; however, it has been speculated to play a role in transcriptional regulation and/or chromatin and histone metabolism.[4]
Research done by Salomé Adam, Sophie E. Polo, and Geneviève Almouzni indicate that HIRA proteins are involved in restarting transcription after UVC damage[5] Function of HIRA gene can be effectively examined by siRNA knockdown based on an independent validation.[6]
Clinical significance
It is considered the primary candidate gene in some haploinsufficiency syndromes such as DiGeorge syndrome, and insufficient production of the gene may disrupt normal embryonic development.[4]
Male and female animals underwent a standardized phenotypic screen to determine the effects of deletion.[9][16] Twenty two tests were carried out on mutant mice and two significant abnormalities were observed.[9] No homozygousmutant mice survived until weaning. The remaining tests were carried out on heterozygous mutant adult mice and a decreased leukocyte cell number was recorded in male animals.[9]
↑Halford S, Wadey R, Roberts C, Daw SC, Whiting JA, O'Donnell H, Dunham I, Bentley D, Lindsay E, Baldini A (Mar 1994). "Isolation of a putative transcriptional regulator from the region of 22q11 deleted in DiGeorge syndrome, Shprintzen syndrome and familial congenital heart disease". Hum Mol Genet. 2 (12): 2099–107. doi:10.1093/hmg/2.12.2099. PMID8111380.
↑Lamour V, Lécluse Y, Desmaze C, Spector M, Bodescot M, Aurias A, Osley MA, Lipinski M (Sep 1995). "A human homolog of the S. cerevisiae HIR1 and HIR2 transcriptional repressors cloned from the DiGeorge syndrome critical region". Hum Mol Genet. 4 (5): 791–9. doi:10.1093/hmg/4.5.791. PMID7633437.
↑Magnaghi P, Roberts C, Lorain S, Lipinski M, Scambler PJ (Oct 1998). "HIRA, a mammalian homologue of Saccharomyces cerevisiae transcriptional co-repressors, interacts with Pax3". Nat Genet. 20 (1): 74–7. doi:10.1038/1739. PMID9731536.
↑Adam, S., Polo, S. E., & Almouzni, G. (2013). Transcription Recovery after DNA Damage Requires Chromatin Priming by the H3.3 Histone Chaperone HIRA. Cell, 155(1), 94-106. Retrieved from http://www.cell.com/abstract/S0092-8674(13)01023-4
↑ 9.09.19.29.3Gerdin AK (2010). "The Sanger Mouse Genetics Programme: High throughput characterisation of knockout mice". Acta Ophthalmologica. 88: 925–7. doi:10.1111/j.1755-3768.2010.4142.x.
Lorain S, Demczuk S, Lamour V, Toth S, Aurias A, Roe BA, Lipinski M (1996). "Structural Organization of the WD repeat protein-encoding gene HIRA in the DiGeorge syndrome critical region of human chromosome 22". Genome Res. 6 (1): 43–50. doi:10.1101/gr.6.1.43. PMID8681138.
Llevadot R, Scambler P, Estivill X, Pritchard M (1997). "Genomic organization of TUPLE1/HIRA: a gene implicated in DiGeorge syndrome". Mamm. Genome. 7 (12): 911–4. doi:10.1007/s003359900268. PMID8995764.
Lorain S, Lécluse Y, Scamps C, Mattéi MG, Lipinski M (2001). "Identification of human and mouse HIRA-interacting protein-5 (HIRIP5), two mammalian representatives in a family of phylogenetically conserved proteins with a role in the biogenesis of Fe/S proteins". Biochim. Biophys. Acta. 1517 (3): 376–83. doi:10.1016/S0167-4781(00)00300-6. PMID11342215.
Gocke CB, Yu H, Kang J (2005). "Systematic identification and analysis of mammalian small ubiquitin-like modifier substrates". J. Biol. Chem. 280 (6): 5004–12. doi:10.1074/jbc.M411718200. PMID15561718.
Zhang R, Poustovoitov MV, Ye X, Santos HA, Chen W, Daganzo SM, Erzberger JP, Serebriiskii IG, Canutescu AA, Dunbrack RL, Pehrson JR, Berger JM, Kaufman PD, Adams PD (2005). "Formation of MacroH2A-containing senescence-associated heterochromatin foci and senescence driven by ASF1a and HIRA". Dev. Cell. 8 (1): 19–30. doi:10.1016/j.devcel.2004.10.019. PMID15621527.
Ahmad A, Kikuchi H, Takami Y, Nakayama T (2005). "Different roles of N-terminal and C-terminal halves of HIRA in transcription regulation of cell cycle-related genes that contribute to control of vertebrate cell growth". J. Biol. Chem. 280 (37): 32090–100. doi:10.1074/jbc.M501426200. PMID16024922.
