Mutant version of our regular EZH2 5-member complex (Cat. #51004), but with a Tyr-to-Ser mutation on a.a. 646 of the EZH2 protein. Complex of human EZH2 (GenBank Accession No. NM_004456), a.a. 2-end, Y646S*, with N-terminal His-tag, MW= 86 kDa, human EED (NM_003797), a.a. 2-end with N-terminal FLAG-tag, MW= 51 kDa, human SUZ12 (NM_015355), a.a. 2-end with N-terminal His-tag, MW = 87 kDa, Human AEBP2 (NM_153207), a.a. 2- end with N-terminal His-tag, MW= 53 kDa, and human RbAp48 (NM_005610), a.a. 2-end with N-terminal His-tag, MW = 48 kDa, co-expressed in a baculovirus expression system.