Function:Seems to be involved in transcriptional silencing in heterochromatin-like complexes. Recognizes and binds histone H3 tails methylated at 'Lys-9' , leading to epigenetic repression. May contribute to the association of the heterochromatin with the inner nuclear membrane through its interaction with lamin B receptor (LBR) . Involved in the formation of functional kinetochore through interaction with MIS12 complex proteins. ,PTM:Phosphorylated by PIM1. Phosphorylated during interphase and possibly hyper-phosphorylated during mitosis. ,similarity:Contains 2 chromo domains. ,subcellular location:Associates with euchromatin and is largely excluded from constitutive heterochromatin. May be associated with microtubules and mitotic poles during mitosis. ,subunit:Binds directly to CHAF1A. Interacts with histone H3 methylated at 'Lys-9'. Part of the E2F6.com-1 complex in G0 phase composed of E2F6 , MGA , MAX , TFDP1 , CBX3 , BAT8 , EUHMTASE1 , RING1 , RNF2 , MBLR , L3MBTL2 and YAF2. Interacts with LBR , INCENP , TRIM28/TIF1B , SUV420H1 , SUV420H2 and SP100. Interacts with TIF1A (By similarity) . Interacts with MIS12 and C20orf127. Can interact directly with CBX5 via the chromoshadow domain. ,
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