>1pdq_B mol:protein length:18 Histone H3.3 APRKQLATKAARKSAPST >1pdq_B mol:protein length:18 Histone H3.3 APRKQLATKAARKSAPST >1pdq_A mol:protein length:72 Polycomb protein MKKHHHHHHDNATDDPVDLVYAAEKIIQKRVKKGVVEYRVKWKGWNQRYNTWEPEVNIL DRRLIDIYEQTNK