1. Cell Cycle/DNA Damage
  2. DNA/RNA Synthesis
  3. CRT0044876


目录号: HY-W014622 纯度: 98.35%

CRT0044876 是一种高效、选择性的嘌呤/嘧啶核苷核酸内切酶 1 (APE1) 抑制剂,IC50 约为 3 μM。CRT0044876 可抑制 APE1 的 AP 内切酶、3′-磷酸二酯酶和 3′-磷酸酶活性,也是 APE1 所属的核酸外切酶 III 家族的特异性抑制剂。CRT0044876 增强了几种 DNA 碱基靶向化合物的细胞毒性。

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CRT0044876 Chemical Structure

CRT0044876 Chemical Structure

CAS No. : 6960-45-8

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Free Sample (0.1-0.5 mg)   Apply now  
10 mM * 1 mL in DMSO ¥1100 In-stock
50 mg ¥1000 In-stock
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200 mg   询价  

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CRT0044876 is a potent and selective apurinic/apyrimidinic endonuclease 1 (APE1) inhibitor (IC50=~3 μM). CRT0044876 inhibits the AP endonuclease, 3′-phosphodiesterase and 3′-phosphatase activities of APE1, and is a specific inhibitor of the exonuclease III family of enzymes to which APE1 belongs. CRT0044876 potentiates the cytotoxicity of several DNA base-targeting compounds[1].

(In Vitro)

A key step in BER is the processing of an apurinic/apyrimidinic (AP) site intermediate by an AP endonuclease. CRT0044876 has an IC50 for inhibition of APE1 of ∼3 μM and not only inhibits AP site cleavage catalyzed by purified APE1, but also cleavage directed by APE1 in a HeLa whole cell extract. CRT0044876 inhibits the 3′-phosphoglycolate diesterase activity of APE1 with an IC50 of ∼5 μM[1].
CRT0044876 inhibits both the exonuclease and AP endonuclease activities of exonuclease III, but shows no inhibitory activity towards endonuclease IV. CRT0044876 has minimal effects on BamHI restriction endonuclease or topoisomerase I even at CRT0044876 concentrations of 100 μM[1].
At non-toxic concentrations, CRT0044876 potentiates the cytotoxicity of several DNA damaging agents, which generate damage that is repaired in the BER pathway, including some currently-used anticancer drugs. The combination of MMS and CRT0044876 leads to a synergistic increase in the level of AP sites. Consistent with CRT0044876 being a specific BER inhibitor, a strong potentiation of hmdUrd cytotoxicity is seen in CRT0044876-treated cells (HT1080 cells)[1].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.






Room temperature in continental US; may vary elsewhere.

Powder -20°C 3 years
4°C 2 years
In solvent -80°C 6 months
-20°C 1 month
In Vitro: 

DMSO : 50 mg/mL (242.54 mM; Need ultrasonic)

H2O : < 0.1 mg/mL (ultrasonic) (insoluble)

浓度 溶剂体积 质量 1 mg 5 mg 10 mg
1 mM 4.8508 mL 24.2542 mL 48.5084 mL
5 mM 0.9702 mL 4.8508 mL 9.7017 mL
10 mM 0.4851 mL 2.4254 mL 4.8508 mL

储备液的保存方式和期限:-80°C, 6 months; -20°C, 1 month。-80°C 储存时,请在 6 个月内使用,-20°C 储存时,请在 1 个月内使用。

In Vivo:

请根据您的实验动物和给药方式选择适当的溶解方案。以下溶解方案都请先按照 In Vitro 方式配制澄清的储备液,再依次添加助溶剂:

——为保证实验结果的可靠性,澄清的储备液可以根据储存条件,适当保存;体内实验的工作液,建议您现用现配,当天使用; 以下溶剂前显示的百

  • 1.

    请依序添加每种溶剂: 10% DMSO    40% PEG300    5% Tween-80    45% saline

    Solubility: 2.5 mg/mL (12.13 mM); Clear solution; Need ultrasonic

    此方案可获得 2.5 mg/mL (12.13 mM) 的澄清溶液。

    以 1 mL 工作液为例,取 100 μL 25.0 mg/mL 的澄清 DMSO 储备液加到 400 μL PEG300 中,混合均匀;向上述体系中加入50 μL Tween-80,混合均匀;然后继续加入 450 μL生理盐水定容至 1 mL。

    将 0.9 g 氯化钠,完全溶解于 100 mL ddH₂O 中,得到澄清透明的生理盐水溶液
*以上所有助溶剂都可在 MCE 网站选购。
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