| First Author | Guo C | Year | 2011 |
| Journal | Cell | Volume | 147 |
| Issue | 2 | Pages | 332-43 |
| PubMed ID | 21982154 | Mgi Jnum | J:177425 |
| Mgi Id | MGI:5295094 | Doi | 10.1016/j.cell.2011.08.049 |
| Citation | Guo C, et al. (2011) Two forms of loops generate the chromatin conformation of the immunoglobulin heavy-chain gene locus. Cell 147(2):332-43 |
| abstractText | The immunoglobulin heavy-chain (IgH) gene locus undergoes radial repositioning within the nucleus and locus contraction in preparation for gene recombination. We demonstrate that IgH locus conformation involves two levels of chromosomal compaction. At the first level, the locus folds into several multilooped domains. One such domain at the 3' end of the locus requires an enhancer, Emu; two other domains at the 5' end are Emu independent. At the second level, these domains are brought into spatial proximity by Emu-dependent interactions with specific sites within the V(H) region. Emu is also required for radial repositioning of IgH alleles, indicating its essential role in large-scale chromosomal movements in developing lymphocytes. Our observations provide a comprehensive view of the conformation of IgH alleles in pro-B cells and the mechanisms by which it is established. |
