The occurrence of three D-J-C clusters within the dromedary TRB locus highlights a shared evolution in Tylopoda, Ruminantia and Suina
Abstract
The αβ T cells are important components of the adaptive immune system and can recognize a vast array of peptides presented by MHC molecules. The ability of these T cells to recognize the complex depends on the diversity of the αβ TR, which is generated by a recombination of specific Variable, Diversity and Joining genes for the β chain, and Variable and Joining genes for the α chain. In this study, we analysed the genomic structure and the gene content of the TRB locus in Camelus dromedarius, which is a species belonging to the Tylopoda suborder. The most noteworthy result is the presence of three in tandem TRBD-J-C clusters in the dromedary TRB locus, which is similar to clusters found in sheep, cattle and pigs and suggests a common duplication event occurred prior to the Tylopoda/Ruminantia/Suina divergence. Conversely, a significant contraction of the dromedary TRBV genes, which was previously found in the TRG and TRD loci, was observed with respect to the other artiodactyl species.
Autore Pugliese
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PALA A.;ANTONACCI R.;CICCARESE S.M.;MASSARI S.
Titolo volume/Rivista
Non Disponibile
Anno di pubblicazione
2017
ISSN
0145-305X
ISBN
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Numero di citazioni Wos
Nessuna citazione
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Settori ERC
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Codici ASJC
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