| First Author | Liang HE | Year | 2002 |
| Journal | Immunity | Volume | 17 |
| Issue | 5 | Pages | 639-51 |
| PubMed ID | 12433370 | Mgi Jnum | J:171970 |
| Mgi Id | MGI:5002710 | Doi | 10.1016/s1074-7613(02)00448-x |
| Citation | Liang HE, et al. (2002) The 'dispensable' portion of RAG2 is necessary for efficient V-to-DJ rearrangement during B and T cell development. Immunity 17(5):639-51 |
| abstractText | Previous in vitro studies defined the minimal regions of RAG1 and RAG2 essential for V(D)J recombination. In order to characterize the role of the C-terminal 'dispensable' portion of RAG2, we generated core-RAG2 knock-in mice. We found that the core-RAG2-containing recombinase complex is selectively defective in catalyzing V-to-DJ rearrangement at the IgH and TCRbeta loci, resulting in partial developmental blocks in B and T lymphopoiesis. Analysis of recombination intermediates showed defects at the cleavage phase of the reaction. We also observed a reduction in overall recombinase activity in core-RAG2-expressing thymocytes, leading us to suggest that the interaction of a defective recombinase with RSS sequences unique to VH and Vbeta gene segments may underlie the specific V-to-DJ rearrangement defect in core-RAG2 mice. |
