Ezh2 gene
The "Ezh2" gene (enhancer of zeste homolog 2) is a component of polycomb repressive complex 2 (PRC2). This histone methyltransferase performs its biological activity by catalyzing the trimethylation of histone 3 lysine 27 (H3K27me3). The biological function of this gene allows for it to transcriptionally repress the target, "Hox", inhibitor genes of osteochodrogenesis. "Ezh2" is crucial for epigenetic regulation of specific patterning during osteochondrogenesis, or bone and cartilage development, of the craniofacial skeletal elements. By repressing inhibitors, "Ezh2" promotes bone and cartilage formation in facial skeletal features arising from the neural crest. Above average "Ezh2" expression has become  a biological marker for the most aggressive form for breast cancer known as Inflammatory Breast Cancer (IBC). But in 2013, a study performed by Zhaomei Mu and his associates concluded that the knockdown gene for "Ezh2" inhibited both the migration and invasion of IBC cells. Also "in vivo", its knockdown gene suppressed tumor growth, most likely by the presence of fewer blood vessels, or reduced angiogenesis, in the "Ezh2" knockdown tumor versus "Ezh2" tumors.