title: Silence of the rings.
abstract: Two recent papers (de Napoles et al., 2004 and Wang et al., 2004) have linked monoubiquitylation of histone H2A to the activities of E3 ubiquitin ligases that reside in Polycomb-group repressor complexes.
authors.affiliation: Molecular Genetics and Microbiology, University of New Mexico School of Medicine, Albuquerque, NM 87131, USA.
authors.forename: Alastair
authors.initials: A
authors.lastname: Fleming
authors.forename: Mary Ann
authors.initials: MA
authors.lastname: Osley
mesh_terms: D000818:Animals; D002843:Chromatin / Q000378:metabolism*; D005786:Gene Expression Regulation; D020868:Gene Silencing; D006657:Histones / Q000378:metabolism*; D006801:Humans; D051379:Mice; D063146:Polycomb-Group Proteins; D012097:Repressor Proteins; D025801:Ubiquitin / Q000378:metabolism*; D044767:Ubiquitin-Protein Ligases / Q000378:metabolism*
chemical_list: D002843:Chromatin; D006657:Histones; D063146:Polycomb-Group Proteins; D012097:Repressor Proteins; D025801:Ubiquitin; D044767:Ubiquitin-Protein Ligases