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  • AZ505 ditrifluoroacetate
    货号: abs818673
    CAS号: 1035227-44-1
    分子式: C33H40Cl2F6N4O8
    分子量: 805.59
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    货号-规格 货期 价格 数量
    abs818673-2mg 1-2周 ¥2516.00
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    abs818673-5mg 1-2周 ¥4322.00
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    大包装询价
    产品描述
    描述
    AZ505 ditrifluoroacetate is a potent and selective SMYD2 inhibitor with IC50 of 0.12 μM.
    基本信息
    可溶性/溶解性
    DMSO: ≥ 42 mg/mL
    生物活性
    靶点
    Histone Methyltransferase
    In vitro(体外研究)
    AZ505 ditrifluoroacetate is highly selective and shows an activity at submicromolar concentrations in vitro. The IC50 of AZ505 for SMYD2 is 0.12 μM, which is >600-fold greater than the IC50s of AZ505 for other histone methyltransferases, such as SMYD3 (IC50>83.3 μM), DOT1L (IC50>83.3 μM) and EZH2 (IC50>83.3 μM). AZ505 is a potent and selective SMYD2 inhibitor with an IC50 of 0.12 μM. The human SMYD (SET and MYND domain-containing protein) family of protein lysine methyltransferases contains five members (SMYD1-5). Moreover, AZ505 fails to inhibit the enzymatic activities of a panel of protein lysine methyltransferases. AZ505 is nominated for ITC binding study with Kd of 0.5 μM. In contrast, the calculated Kd for the p53 substrate peptide is 3.7 μM. AZ505 binding to SMYD2 is driven primarily by entropy, which often suggests that binding is mediated by hydrophobic interactions with few specific hydrogen bonds.
    参考文献
    参考文献
    [1]. Ferguson AD, et al. Structural basis of substrate methylation and inhibition of SMYD2. Structure. 2011 Sep 7;19(9):1262-73.

    Abstract

    Protein lysine methyltransferases are important regulators of epigenetic signaling. These enzymes catalyze the transfer of donor methyl groups from S-adenosylmethionine to specific acceptor lysines on histones, leading to changes in chromatin structure and transcriptional regulation. These enzymes also methylate nonhistone protein substrates, revealing an additional mechanism to regulate cellular physiology. The oncogenic protein SMYD2 represses the functional activities of the tumor suppressor proteins p53 and Rb, making it an attractive drug target. Here we report the discovery of AZ505, a potent and selective inhibitor of SMYD2 that was identified from a high throughput chemical screen. We also present the crystal structures of SMYD2 with p53 substrate and product peptides, and notably, in complex with AZ505. This substrate competitive inhibitor is bound in the peptide binding groove of SMYD2. These results have implications for the development of SMYD2 inhibitors, and indicate the potential for developing novel therapies targeting this target class.
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