Complex of human EZH2 (GenBank Accession No. NM_004456), a.a. 2-end, 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.
EZH2 is the catalytic subunit of the PRC2/EED-EZH2 protein complex, which methylates Lys9 (H3K9me) and Lys27 (H3K27me) of histone H3, leading to transcriptional repression of the affected target gene.
Able to mono-, di- and trimethylate Lys27 of histone H3 to form H3K27me1, H3K27me2 and H3K27me3, respectively.
Compared to EZH2-containing complexes, it is more abundant in embryonic stem cells and plays a major role in forming H3K27me3, which is required for embryonic stem cell identity and proper differentiation. The PRC2/EED-EZH2 protein complex may also serve as a recruiting platform for DNA methyltransferases, thereby linking two epigenetic repression systems. Genes repressed by the PRC2/EED-EZH2 complex include HOXC8, HOXA9, MYT1, CDKN2A and retinoic acid target genes. EZH2 can also methylate non-histone proteins such as the transcription factor GATA4.
Assay was performed using EZH2 Chemiluminescent Assay Kit (BPS Bioscience #52009L) with various amounts of EZH2.
Instructions for Use
Thaw on ice and gently mix prior to use. DO NOT VORTEX. Perform a quick spin before opening. Aliquot into small volumes and flash freeze for long term storage. Avoid multiple freeze/thaw cycles.
Applications
Useful for the study of enzyme kinetics, screening inhibitors, and selectivity profiling.
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