HP1_DROME MGKKIDNPESSAKVSDAEEEEEEYAVEKIIDRRVRKGKVEYYLKWKGYPETENTWEPENNLDCQDLIQQYEASRKDEEKSAASKKDRPSSSAKAKETQGRASSSTSTASKRKSEEPTAPSGNKSKRTTDAEQDTIPVSGSTGFDRGLEAEKILGASDNNGRLTFLIQFKGVDQAEMVPSSVANEKIPRMVIHFYEERLSWYSDNED Structural component of heterochromatin, involved in gene repression and the modification of position-effect- variegation. Recognizes and binds histone H3 tails methylated at 'Lys-9', leading to epigenetic repression. Heterochromatin protein 1 Su(var)205 CG8409 HP1 Non-histone chromosomal protein C1A9 antigen 206