Reaction: PRMT5:WDR77, PRMT7 methylate arginine-3 of histone H3 (H3R2)
- in pathway: RMTs methylate histone arginines
Histone H3 is symmetrically dimethylated on arginine-3 by PRMT5 and PRMT7 (Migliori et al. 2012, Tsai et al. 2013). This excludes binding of RBBP7, a central component of the co-repressor complexes Sin3a, NURD and PRC2. Conversely Me2sR3-histone H3 enhances binding of WDR5, a common component of the coactivator complexes MLL, SET1A, SET1B, NLS1 and ATAC. The interaction of histone H3 with WDR5 distinguishes symmetric dimethylation of arginine-3 from asymmetric dimethylation, which inhibits the recruitment of WDR5 to chromatin (Guccione et al. 2007, Hyllus et al. 2007, Migliori et al. 2012).
Reaction - small molecule participants:
AdoHcy [nucleoplasm]
AdoMet [nucleoplasm]
Reactome.org reaction link: R-HSA-5218952
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Reaction input - small molecules:
S-adenosyl-L-methionine zwitterion
Reaction output - small molecules:
S-adenosyl-L-homocysteine zwitterion
Reactome.org link: R-HSA-5218952