The RAG transposon is active through the deuterostome evolution and domesticated in jawed vertebrates

@article{MoralesPoole2017TheRT,
  title={The RAG transposon is active through the deuterostome evolution and domesticated in jawed vertebrates},
  author={Jose Ricardo Morales Poole and Shengfeng Huang and Anlong Xu and Justine Bayet and Pierre Pontarotti},
  journal={Immunogenetics},
  year={2017},
  volume={69},
  pages={391-400}
}
RAG1 and RAG2 are essential subunits of the V(D)J recombinase required for the generation of the variability of antibodies and T cell receptors in jawed vertebrates. It was demonstrated that the amphioxus homologue of RAG1-RAG2 is encoded in an active transposon, belonging to the transposase DDE superfamily. The data provided support the possibility that the RAG transposon has been active through the deuterostome evolution and is still active in several lineages. The RAG transposon corresponds… 
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TLDR
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