6533b7d7fe1ef96bd1268523
RESEARCH PRODUCT
Establishment of Polycomb silencing requires a transient interaction between PC and ESC
Sylvain PouxVincenzo PirrottaRaffaella Melfisubject
Polycomb-Group ProteinsRepressorSettore BIO/11 - Biologia MolecolarePlasma protein bindingBiologyPolycomb silencingResearch CommunicationGeneticsPolycomb-group proteinsAnimalsDrosophila ProteinsGene silencingGene Silencingreproductive and urinary physiologyPolycomb Repressive Complex 1Reporter geneurogenital systemPolycomb Repressive Complex 2PcG complexEmbryoHistone-Lysine N-MethyltransferasePrecipitin TestsEmbryonic stem cellMolecular biologyRepressor Proteinsembryonic structuresInsect ProteinsDrosophilaRepressor lexAbiological phenomena cell phenomena and immunityESC/PHOProtein BindingDevelopmental Biologydescription
Two distinct types of Polycomb complexes have been identified in flies and in vertebrates, one containing ESC and one containing PC. Using LexA fusions, we show that PC and ESC can establish silencing of a reporter gene but that each requires the presence of the other. In early embryonic extracts, we find PC transiently associated with ESC in a complex that includes EZ, PHO, PH, GAGA, and RPD3 but not PSC. In older embryos, PC is found in a complex including PH, PSC, GAGA, and RPD3, whereas ESC is in a separate complex including EZ, PHO, and RPD3.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2001-10-01 | Genes & Development |