Abstract：
:The retinoblastoma tumour-suppressor protein Rb inhibits cell proliferation by repressing a subset of genes that are controlled by the E2F family of transcription factors and which are involved in progression from the G1 to the S phase of the cell cycle. Rb, which is recruited to target promoters by E2F1, represses transcription by masking the E2F1 transactivation domain and by inhibiting surrounding enhancer elements, an active repression that could be crucial for the proper control of progression through the cell cycle. Some transcriptional regulators act by acetylating or deacetylating the tails protruding from the core histones, thereby modulating the local structure of chromatin: for example, some transcriptional repressors function through the recruitment of histone deacetylases. We show here that the histone deacetylase HDAC1 physically interacts and cooperates with Rb. In HDAC1, the sequence involved is an LXCXE motif, similar to that used by viral transforming proteins to contact Rb. Our results strongly suggest that the Rb/HDAC1 complex is a key element in the control of cell proliferation and differentiation and that it is a likely target for transforming viruses.
journal_name
Naturejournal_title
Natureauthors
Magnaghi-Jaulin L,Groisman R,Naguibneva I,Robin P,Lorain S,Le Villain JP,Troalen F,Trouche D,Harel-Bellan Adoi
10.1038/35410subject
Has Abstractpub_date
1998-02-05 00:00:00pages
601-5issue
6667eissn
0028-0836issn
1476-4687journal_volume
391pub_type
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