HESX homeobox 1
עודכן לאחרונה 11 אפריל 2023
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ה HESX1 gene provides instructions for producing a protein that regulates the activity of other genes. On the basis of this action, the HESX1 protein is called a transcription factor. The HESX1 gene is part of a family of homeobox genes, which act during early embryonic development to control the formation of many body structures.
Normal function
ה HESX1 gene provides instructions for producing a protein that regulates the activity of other genes. On the basis of this action, the HESX1 protein is called a transcription factor. The HESX1 gene is part of a family of homeobox genes, which act during early embryonic development to control the formation of many body structures.
The HESX1 protein plays an important role in early brain development. In particular, it is essential for the formation of the pituitary, which is a gland at the base of the brain that produces several hormones. The HESX1 protein is also necessary for the development of structures at the front of the brain (the forebrain), including the nerves that carry visual information from the eyes to the brain (optic nerves).
The HESX1 protein interacts with other proteins, including the protein produced from the PROP1 gene, during embryonic development. Both the HESX1 protein and the PROP1 protein bind to DNA and control the activity of other genes. The HESX1 protein turns off (represses) genes, while the PROP1 protein turns on (activates) genes. These proteins work together to coordinate the development of certain parts of the brain.
Conditions referring to this gene or chromosome
Other names
ANF
CPHD5
HESX1_HUMAN
homeobox, ES cell expressed 1
Rathke pouch homeobox
RPX
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קריאה נוספת והפניות
- HESX homeobox 1; MedlinePlus, National Library of Medicine.
- Brickman JM, Clements M, Tyrell R, McNay D, Woods K, Warner J, Stewart A, Beddington RS, Dattani M. Molecular effects of novel mutations in Hesx1/HESX1 associated with human pituitary disorders. Development. 2001 Dec;128(24):5189-99. doi: 10.1242/dev.128.24.5189.
- Carvalho LR, Woods KS, Mendonca BB, Marcal N, Zamparini AL, Stifani S, Brickman JM, Arnhold IJ, Dattani MT. A homozygous mutation in HESX1 is associated with evolving hypopituitarism due to impaired repressor-corepressor interaction. J Clin Invest. 2003 Oct;112(8):1192-201. doi: 10.1172/JCI18589.
- Dattani MT, Martinez-Barbera JP, Thomas PQ, Brickman JM, Gupta R, Martensson IL, Toresson H, Fox M, Wales JK, Hindmarsh PC, Krauss S, Beddington RS, Robinson IC. Mutations in the homeobox gene HESX1/Hesx1 associated with septo-optic dysplasia in human and mouse. Nat Genet. 1998 Jun;19(2):125-33. doi: 10.1038/477.
- Dattani MT, Robinson IC. HESX1 and Septo-Optic Dysplasia. Rev Endocr Metab Disord. 2002 Dec;3(4):289-300. doi: 10.1023/a:1020945406356. No abstract available.
- Kato Y, Kimoto F, Susa T, Nakayama M, Ishikawa A, Kato T. Pituitary homeodomain transcription factors HESX1 and PROP1 form a heterodimer on the inverted TAAT motif. Mol Cell Endocrinol. 2010 Feb 5;315(1-2):168-73. doi: 10.1016/j.mce.2009.10.006. Epub 2009 Oct 29.
- McNay DE, Turton JP, Kelberman D, Woods KS, Brauner R, Papadimitriou A, Keller E, Keller A, Haufs N, Krude H, Shalet SM, Dattani MT. HESX1 mutations are an uncommon cause of septooptic dysplasia and hypopituitarism. J Clin Endocrinol Metab. 2007 Feb;92(2):691-7. doi: 10.1210/jc.2006-1609. Epub 2006 Dec 5.
- Sobrier ML, Maghnie M, Vie-Luton MP, Secco A, di Iorgi N, Lorini R, Amselem S. Novel HESX1 mutations associated with a life-threatening neonatal phenotype, pituitary aplasia, but normally located posterior pituitary and no optic nerve abnormalities. J Clin Endocrinol Metab. 2006 Nov;91(11):4528-36. doi: 10.1210/jc.2006-0426. Epub 2006 Aug 29.
- Sobrier ML, Netchine I, Heinrichs C, Thibaud N, Vie-Luton MP, Van Vliet G, Amselem S. Alu-element insertion in the homeodomain of HESX1 and aplasia of the anterior pituitary. Hum Mutat. 2005 May;25(5):503. doi: 10.1002/humu.9332.
- Tajima T, Hattorri T, Nakajima T, Okuhara K, Sato K, Abe S, Nakae J, Fujieda K. Sporadic heterozygous frameshift mutation of HESX1 causing pituitary and optic nerve hypoplasia and combined pituitary hormone deficiency in a Japanese patient. J Clin Endocrinol Metab. 2003 Jan;88(1):45-50. doi: 10.1210/jc.2002-020818.
- Thomas PQ, Dattani MT, Brickman JM, McNay D, Warne G, Zacharin M, Cameron F, Hurst J, Woods K, Dunger D, Stanhope R, Forrest S, Robinson IC, Beddington RS. Heterozygous HESX1 mutations associated with isolated congenital pituitary hypoplasia and septo-optic dysplasia. Hum Mol Genet. 2001 Jan 1;10(1):39-45. doi: 10.1093/hmg/10.1.39.
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