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brachyury
Brachyury is a protein that in humans is encoded by the ''T'' gene.〔(【引用サイトリンク】 url = http://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene&Cmd=ShowDetailView&TermToSearch=6862 )〕 Brachyury is a transcription factor within the T-box complex of genes. It has been found in all bilaterian animals that have been screened, and is also present in the cnidaria.〔
== History ==
The ''brachyury'' mutation was first described in mice by Nadine Dobrovolskaïa-Zavadskaïa in 1927 as a mutation that affected tail length and sacral vertebrae in heterozygous animals. In homozygous animals the brachyury mutation is lethal at around embryonic day 10 due to defects in mesoderm formation, notochord differentiation and the absence of structures posterior to the forlimb bud (Dobrovolskaïa-Zavadskaïa, 1927). The name brachyury comes from the Greek ''brakhus'' meaning short and ''oura'' meaning tail.
According to human and mouse genome nomenclature, ''brachyury'' now has the symbol and gene name ''T'' although brachyury is maintained as the gene description.
The mouse ''T'' gene was cloned by Bernhard Herrmann and colleagues and proved to encode an 436 amino acid embryonic nuclear transcription factor. T binds to a specific DNA element, a near palindromic sequence TCACACCT through a region in its N-terminus, called the T-box. ''T'' is the founding member of the T-box family which in mammals currently consists of 18 T-box genes.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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