title: Distinct transcriptional outputs associated with mono- and dimethylated histone H3 arginine 2.
abstract: Dimethylation of histone H3 Arg2 (H3R2me2) maintains transcriptional silencing by inhibiting Set1 mediated trimethylation of H3K4. Here we demonstrate that Arg2 is also monomethylated (H3R2me1) in yeast but that its functional characteristics are distinct from H3R2me2: (i) H3R2me1 does not inhibit histone H3 Lys4 (H3K4) methylation; (ii) it is present throughout the coding region of genes; and (iii) it correlates with active transcription. Collectively, these results indicate that different H3R2 methylation states have defined roles in gene expression.
authors.affiliation: Gurdon Institute and Department of Pathology, Cambridge CB2 1QN, UK.
authors.forename: Antonis
authors.initials: A
authors.lastname: Kirmizis
authors.forename: Helena
authors.initials: H
authors.lastname: Santos-Rosa
authors.forename: Christopher J
authors.initials: CJ
authors.lastname: Penkett
authors.forename: Michael A
authors.initials: MA
authors.lastname: Singer
authors.forename: Roland D
authors.initials: RD
authors.lastname: Green
authors.forename: Tony
authors.initials: T
authors.lastname: Kouzarides
mesh_terms: D001120:Arginine / Q000378:metabolism*; D015966:Gene Expression Regulation, Fungal; D006657:Histones / Q000378:metabolism*; D008745:Methylation; D012441:Saccharomyces cerevisiae / Q000502:physiology*
chemical_list: D006657:Histones; D001120:Arginine