. . . . . . . . . . . . . . . . . . . . . . . "cbx1_mouse"^^ . "Modifier 1 protein"^^ . "M31"^^ . "Heterochromatin protein 1 homolog beta"^^ . "Heterochromatin protein p25"^^ . "Cbx"^^ . "Cbx1"^^ . . "Chromobox protein homolog 1"^^ .