?
SET domain found in SET domain-containing protein 7 (SETD7) and similar proteins SETD7 (EC 2.1.1.43; also termed histone H3-K4 methyltransferase SETD7, H3-K4-HMTase SETD7, lysine N-methyltransferase 7 (KMT7) or SET7/9) is a histone-lysine N-methyltransferase that specifically monomethylates 'Lys-4' of histone H3. It plays a central role in the transcriptional activation of genes such as collagenase or insulin. Set7/9 also methylates non-histone proteins, including estrogen receptor alpha (ERa), suggesting it has a role in diverse biological processes. ERa methylation by Set7/9 stabilizes ERa and activates its transcriptional activities, which are involved in the carcinogenesis of breast cancer. In a high-throughput screen, treatment of human breast cancer cells (MCF7 cells) with cyproheptadine, a Set7/9 inhibitor, decreased the expression and transcriptional activity of ERa, thereby inhibiting estrogen-dependent cell growth. |
Jiyao W et al.(2023). "The conserved domain database in 2023.",