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Polycomb proteins are required for maintenance of silent chromatin states via histone H3 Lys27 trimethylation (H3K27me3) in animals, but homologs are not found in plant genomes. Using a DamID-chip method, we found that the Arabidopsis thaliana chromodomain-containing protein LHP1 colocalizes with H3K27me3 genome-wide. The LHP1 chromodomain also binds H3K27me3 with high affinity, suggesting that LHP1 has functions similar to those of Polycomb.

Original publication

DOI

10.1038/nsmb1283

Type

Journal article

Journal

Nat Struct Mol Biol

Publication Date

09/2007

Volume

14

Pages

869 - 871

Keywords

Arabidopsis, Chromosomal Proteins, Non-Histone, Histones, Lysine, Methylation