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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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Germline genomic structure of the B10.A mouse Tcra-V2 gene subfamily.

The number of mouse Tcra-V gene segments varies from one individual to another and is estimated to be about 100. Southern blot analysis revealed that most of the Tcra-V are organized in clusters composed of copies of Tcra-V belonging to different subfamilies. We analyzed in detail a Tcra-V subfamily and looked for new Tcra-V in order to improve the knowledge of the mouse Tcra locus organization. A series of genomic clones derived from the B10.A mouse strain enclosing these clusters was used to determined the structure of all the Tcra-V2. We were able to identify ten Tcra-V2. This study showed that the Tcra-V2 can be organized into three structural subgroups. The distribution of the genes along the Tcra locus, plus their structural organization, indicates that successive duplications occurred during the processes of expansion and contraction of the Tcra-V gene subfamilies. Several Tcra-V2 are also identical, indicating recent duplications. The most divergent Tcra-V2 differ by 7.4% nucleotides, leading to 5.2% differences in amino acid contents.[1]

References

  1. Germline genomic structure of the B10.A mouse Tcra-V2 gene subfamily. Gahéry-Ségard, H., Jouvin-Marche, E., Six, A., Gris-Liebe, C., Malissen, M., Malissen, B., Cazenave, P.A., Marche, P.N. Immunogenetics (1996) [Pubmed]
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