| First Author | Parra M | Year | 2007 |
| Journal | Genes Dev | Volume | 21 |
| Issue | 6 | Pages | 638-43 |
| PubMed ID | 17369396 | Mgi Jnum | J:119479 |
| Mgi Id | MGI:3702260 | Doi | 10.1101/gad.1513107 |
| Citation | Parra M, et al. (2007) Myosin phosphatase dephosphorylates HDAC7, controls its nucleocytoplasmic shuttling, and inhibits apoptosis in thymocytes. Genes Dev 21(6):638-43 |
| abstractText | The repressive activity of histone deacetylase 7 (HDAC7), a class IIa HDAC expressed in CD4+CD8+ double-positive thymocytes, is regulated by its nucleocytoplasmic shuttling. In resting thymocytes, HDAC7 is nuclear and functions as a transcriptional repressor. After T-cell receptor (TCR) activation, the serine/threonine kinase PKD1 phosphorylates HDAC7, resulting in its nuclear export and the derepression of its target genes. Here, we identify protein phosphatase 1beta (PP1beta) and myosin phosphatase targeting subunit 1 (MYPT1), two components of the myosin phosphatase complex, as HDAC7-associated proteins in thymocytes. Myosin phosphatase dephosphorylates HDAC7 and promotes its nuclear localization, leading to the repression of the HDAC7 target, Nur77, and the inhibition of apoptosis in CD4+CD8+ thymocytes. |
