actin gamma 1
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A ACTG1 gene provides instructions for making a protein called gamma (γ)-actin, which is part of the actin protein family. Proteins in this family are organized into a network of fibers called the actin cytoskeleton, which makes up the structural framework inside cells. There are six types of actin; four are present only in muscle cells, where they are involved in the tensing of muscle fibers (muscle contraction). The other two actin proteins, γ-actin and beta (β)-actin (produced from the ACTB gene), are found in cells throughout the body. These proteins play important roles in determining cell shape and controlling cell movement (motility).
Normal function
A ACTG1 gene provides instructions for making a protein called gamma (γ)-actin, which is part of the actin protein family. Proteins in this family are organized into a network of fibers called the actin cytoskeleton, which makes up the structural framework inside cells. There are six types of actin; four are present only in muscle cells, where they are involved in the tensing of muscle fibers (muscle contraction). The other two actin proteins, γ-actin and beta (β)-actin (produced from the ACTB gene), are found in cells throughout the body. These proteins play important roles in determining cell shape and controlling cell movement (motility).
γ-actin is particularly abundant in certain cells in the intestines and the inner ear. Within the inner ear, this protein is found in specialized cells called hair cells, which are essential for normal hearing.
Conditions referring to this gene or chromosome
Other names
ACT
ACTG
ACTG_HUMAN
actin, cytoplasmic 2
actin, gamma 1
actin-like protein
cytoskeletal gamma-actin
deafness, autosomal dominant 20
deafness, autosomal dominant 26
DFNA20
DFNA26
gamma-actin
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Leitura adicional e referências
- actin gamma 1; MedlinePlus, National Library of Medicine.
- Bryan KE, Wen KK, Zhu M, Rendtorff ND, Feldkamp M, Tranebjaerg L, Friderici KH, Rubenstein PA. Effects of human deafness gamma-actin mutations (DFNA20/26) on actin function. J Biol Chem. 2006 Jul 21;281(29):20129-39. doi: 10.1074/jbc.M601514200. Epub 2006 May 10.
- Dugina V, Zwaenepoel I, Gabbiani G, Clement S, Chaponnier C. Beta and gamma-cytoplasmic actins display distinct distribution and functional diversity. J Cell Sci. 2009 Aug 15;122(Pt 16):2980-8. doi: 10.1242/jcs.041970. Epub 2009 Jul 28.
- Rendtorff ND, Zhu M, Fagerheim T, Antal TL, Jones M, Teslovich TM, Gillanders EM, Barmada M, Teig E, Trent JM, Friderici KH, Stephan DA, Tranebjaerg L. A novel missense mutation in ACTG1 causes dominant deafness in a Norwegian DFNA20/26 family, but ACTG1 mutations are not frequent among families with hereditary hearing impairment. Eur J Hum Genet. 2006 Oct;14(10):1097-105. doi: 10.1038/sj.ejhg.5201670. Epub 2006 Jun 14.
- Riviere JB, van Bon BW, Hoischen A, Kholmanskikh SS, O'Roak BJ, Gilissen C, Gijsen S, Sullivan CT, Christian SL, Abdul-Rahman OA, Atkin JF, Chassaing N, Drouin-Garraud V, Fry AE, Fryns JP, Gripp KW, Kempers M, Kleefstra T, Mancini GM, Nowaczyk MJ, van Ravenswaaij-Arts CM, Roscioli T, Marble M, Rosenfeld JA, Siu VM, de Vries BB, Shendure J, Verloes A, Veltman JA, Brunner HG, Ross ME, Pilz DT, Dobyns WB. De novo mutations in the actin genes ACTB and ACTG1 cause Baraitser-Winter syndrome. Nat Genet. 2012 Feb 26;44(4):440-4, S1-2. doi: 10.1038/ng.1091.
- van Wijk E, Krieger E, Kemperman MH, De Leenheer EM, Huygen PL, Cremers CW, Cremers FP, Kremer H. A mutation in the gamma actin 1 (ACTG1) gene causes autosomal dominant hearing loss (DFNA20/26). J Med Genet. 2003 Dec;40(12):879-84. doi: 10.1136/jmg.40.12.879.
- Zhu M, Yang T, Wei S, DeWan AT, Morell RJ, Elfenbein JL, Fisher RA, Leal SM, Smith RJ, Friderici KH. Mutations in the gamma-actin gene (ACTG1) are associated with dominant progressive deafness (DFNA20/26). Am J Hum Genet. 2003 Nov;73(5):1082-91. doi: 10.1086/379286. Epub 2003 Sep 16.
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