tubulin beta 2B class IIb
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A TUBB2B gene provides instructions for making one version of a protein called beta-tubulin (β-tubulin). This protein is part of the tubulin family of proteins that form and organize cell structures called microtubules. Microtubules are rigid, hollow fibers that make up the cell's structural framework (the cytoskeleton). They are composed of β-tubulin and a similar protein called alpha-tubulin (α-tubulin) that is produced from a different gene. Microtubules grow and shrink as tubulin proteins are added to and removed from the ends of fibers. This process allows cells to move and change shape.
Normal function
A TUBB2B gene provides instructions for making one version of a protein called beta-tubulin (β-tubulin). This protein is part of the tubulin family of proteins that form and organize cell structures called microtubules. Microtubules are rigid, hollow fibers that make up the cell's structural framework (the cytoskeleton). They are composed of β-tubulin and a similar protein called alpha-tubulin (α-tubulin) that is produced from a different gene. Microtubules grow and shrink as tubulin proteins are added to and removed from the ends of fibers. This process allows cells to move and change shape.
β-tubulin produced from the TUBB2B gene is found primarily in the brain and in nerve cells (neurons). In neurons, microtubules are integral for the cells' movement to the proper location in the brain and for a process called axon guidance, by which specialized extensions of neurons (axons) reach their correct positions. Once in the right location, axons relay messages to and from the brain to control muscle movement and detect sensations such as touch, pain, heat, and sound.
Conditions referring to this gene or chromosome
Other names
class IIb beta-tubulin
TUBULIN, BETA, CLASS IIB
TUBULIN, BETA-2B
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Leitura adicional e referências
- tubulin beta 2B class IIb; MedlinePlus, National Library of Medicine.
- Cederquist GY, Luchniak A, Tischfield MA, Peeva M, Song Y, Menezes MP, Chan WM, Andrews C, Chew S, Jamieson RV, Gomes L, Flaherty M, Grant PE, Gupta ML Jr, Engle EC. An inherited TUBB2B mutation alters a kinesin-binding site and causes polymicrogyria, CFEOM and axon dysinnervation. Hum Mol Genet. 2012 Dec 15;21(26):5484-99. doi: 10.1093/hmg/dds393. Epub 2012 Sep 21.
- Di Donato N, Timms AE, Aldinger KA, Mirzaa GM, Bennett JT, Collins S, Olds C, Mei D, Chiari S, Carvill G, Myers CT, Riviere JB, Zaki MS; University of Washington Center for Mendelian Genomics; Gleeson JG, Rump A, Conti V, Parrini E, Ross ME, Ledbetter DH, Guerrini R, Dobyns WB. Analysis of 17 genes detects mutations in 81% of 811 patients with lissencephaly. Genet Med. 2018 Nov;20(11):1354-1364. doi: 10.1038/gim.2018.8. Epub 2018 Apr 19.
- Jaglin XH, Poirier K, Saillour Y, Buhler E, Tian G, Bahi-Buisson N, Fallet-Bianco C, Phan-Dinh-Tuy F, Kong XP, Bomont P, Castelnau-Ptakhine L, Odent S, Loget P, Kossorotoff M, Snoeck I, Plessis G, Parent P, Beldjord C, Cardoso C, Represa A, Flint J, Keays DA, Cowan NJ, Chelly J. Mutations in the beta-tubulin gene TUBB2B result in asymmetrical polymicrogyria. Nat Genet. 2009 Jun;41(6):746-52. doi: 10.1038/ng.380. Epub 2009 May 24.
- Romaniello R, Arrigoni F, Fry AE, Bassi MT, Rees MI, Borgatti R, Pilz DT, Cushion TD. Tubulin genes and malformations of cortical development. Eur J Med Genet. 2018 Dec;61(12):744-754. doi: 10.1016/j.ejmg.2018.07.012. Epub 2018 Jul 17.
- Romaniello R, Arrigoni F, Panzeri E, Poretti A, Micalizzi A, Citterio A, Bedeschi MF, Berardinelli A, Cusmai R, D'Arrigo S, Ferraris A, Hackenberg A, Kuechler A, Mancardi M, Nuovo S, Oehl-Jaschkowitz B, Rossi A, Signorini S, Tuttelmann F, Wahl D, Hehr U, Boltshauser E, Bassi MT, Valente EM, Borgatti R. Tubulin-related cerebellar dysplasia: definition of a distinct pattern of cerebellar malformation. Eur Radiol. 2017 Dec;27(12):5080-5092. doi: 10.1007/s00330-017-4945-2. Epub 2017 Jul 4.
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