First Author | Verdel A | Year | 2000 |
Journal | Curr Biol | Volume | 10 |
Issue | 12 | Pages | 747-9 |
PubMed ID | 10873806 | Mgi Jnum | J:359813 |
Mgi Id | MGI:7790564 | Doi | 10.1016/s0960-9822(00)00542-x |
Citation | Verdel A, et al. (2000) Active maintenance of mHDA2/mHDAC6 histone-deacetylase in the cytoplasm. Curr Biol 10(12):747-9 |
abstractText | The intracellular localization, and thereby the function, of a number of key regulator proteins tagged with a short leucine-rich motif (the nuclear export signal or NES) is controlled by CRM1/exportin1, which is involved in the export of these proteins from the nucleus [1]. A common characteristic of these regulators is their transient action in the nucleus during either a specific phase of the cell cycle or in response to specific signals [1]. Here, we show that a particular member of the class II histone-deacetylases mHDA2/mHDAC6 [2] belongs to this family of cellular regulators that are present predominantly in the cytoplasm, but are also capable of shuttling between the nucleus and the cytoplasm. A very potent NES present at the amino terminus of mHDAC6 was found to play an essential role in this shuttling process. The sub-cellular localization of mHDAC6 appeared to be controlled by specific signals, since the arrest of cell proliferation was found to be associated with the translocation of a fraction of the protein into the nucleus. Data presented here suggest that mHDAC6 might be the first member of a functionally distinct class of deacetylases, responsible for activities not shared by other known histone deacetylases. |