PTC124(Ataluren)
(Synonyms: 阿塔鲁伦,PTC 124;PTC-124) 目录号 : GC12346
Selective inducer of stop codon read-through
Cas No.:775304-57-9
Sample solution is provided at 25 µL, 10mM.
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PTC124 is a selective inhibitor of nonsense mutations with IC50 value of 0.1μM [1].
Nonsense mutation is a point mutation in a sequence of DNA which promotes premature translational termination. Different from missense mutation, nonsense mutation means a single nucleotide is changed and results in the substitution of a different amino acid. It has been reported that some genetic disorders (thalassemia, DMD, CF, Hurler syndrome) are correlated with nonsense mutation [1, 2].
PTC124 is a potent nonsense mutations inhibitor. When tested with human or mdx mice primary muscle cells expressing dystrophin nonsense alleles, 2-8 weeks treatment of PTC124 enhanced the production of dystrophin [1]. In iPSC-derived RPE cells with nonsense mutation c.519C>T (p.R120X), PTC124 treatment restored endogenous, full-length RP2 protein with near 20% [3]. When tested with COS7 cells carrying the nonsense mutation pDsRed-EGFPmtag-Y445X, EGFP transcript level was increased after treated by PTC124 in a dose-dependent manner [2].
In mdx mice model, oral administration of PTC124 for 2-8 weeks rescued striated muscle function [1]. In a model of Cftr-/- mice expressing a human CFTR-G542X transgene, s.c. injection or oral administration of PTC124 restored a considerable amount of human (h) CFTR protein and function via suppressing G542X nonsense mutation [4].
References:
[1]. Welch, E.M., et al., PTC124 targets genetic disorders caused by nonsense mutations. Nature, 2007. 447(7140): p. 87-91.
[2]. Shen, Q., P. Guo, and B. Chai, pDsRed-EGFPmtag-, an effective dual fluorescent reporter system for cell-based screens of premature termination codon. Cytotechnology, 2014.
[3]. Schwarz, N., et al., Translational read-through of the RP2 Arg120stop mutation in patient iPSC-derived retinal pigment epithelium cells. Hum Mol Genet, 2015. 24(4): p. 972-86.
[4]. Du, M., et al., PTC124 is an orally bioavailable compound that promotes suppression of the human CFTR-G542X nonsense allele in a CF mouse model. Proc Natl Acad Sci U S A, 2008. 105(6): p. 2064-9.
| Cell experiment: [1] | |
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Cell lines |
HEK293 cells |
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Preparation method |
The solubility of this compound in DMSO is >10 mM. General tips for obtaining a higher concentration: Please warm the tube at 37 °C for 10 minutes and/or shake it in the ultrasonic bath for a while.Stock solution can be stored below -20°C for several months. |
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Reaction Conditions |
3 μM, 16 hours |
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Applications |
Cultured HEK293 cells harbouring UAA, UAG or UGA LUC-190 nonsense alleles were treated with increasing concentrations of PTC124 for 16 h, and assayed for luciferase activity. PTC124 promoted dose-dependent readthrough of all three nonsense codons. Levels of suppression correlated inversely with established termination efficiencies, with the highest readthrough at UGA, followed by UAG and then UAA. The minimal concentration of PTC124 showing discernable readthrough was 0.01–0.1 μM, whereas the concentration promoting maximal activity was approximately 3 μM. |
| Animal experiment: [2] | |
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Animal models |
Cftr-/- hCFTR-G542X Mice |
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Dosage form |
Subcutaneous injection, 60, 30, or 15 mg/kg body weight for 14–21 days |
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Applications |
After the treatment, the mice were killed and intestinal tissues were harvested for immunofluorescence staining to determine whether hCFTR protein could be detected. No hCFTR protein was detected in intestinal tissues from untreated mice with hCFTR-specific antiserum. However, strong hCFTR staining was observed at the apical surface of epithelial cells in submucosal glands from mice treated with 60 mg/kg PTC124. Much weaker staining was detected in submucosal glands from mice treated with 30 mg/kg PTC124, whereas no signal could be detected in mice treated with 15 mg/kg PTC124. These results indicate that PTC124 can suppress the G542X mutation and partially restore hCFTR protein expression in Cftr-/- hCFTR-G542X mice. |
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Other notes |
Please test the solubility of all compounds indoor, and the actual solubility may slightly differ with the theoretical value. This is caused by an experimental system error and it is normal. |
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References: [1] Welch E M, Barton E R, Zhuo J, et al. PTC124 targets genetic disorders caused by nonsense mutations. Nature, 2007, 447(7140): 87-91. [2] Du M, Liu X, Welch E M, et al. PTC124 is an orally bioavailable compound that promotes suppression of the human CFTR-G542X nonsense allele in a CF mouse model. Proceedings of the National Academy of Sciences, 2008, 105(6): 2064-2069. | |
| Cas No. | 775304-57-9 | SDF | |
| 别名 | 阿塔鲁伦,PTC 124;PTC-124 | ||
| 化学名 | 3-[5-(2-fluorophenyl)-1,2,4-oxadiazol-3-yl]benzoic acid | ||
| Canonical SMILES | C1=CC=C(C(=C1)C2=NC(=NO2)C3=CC(=CC=C3)C(=O)O)F | ||
| 分子式 | C15H9FN2O3 | 分子量 | 284.24 |
| 溶解度 | ≥ 10.6mg/mL in DMSO | 储存条件 | Store at -20°C |
| General tips | 请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液；一旦配成溶液，请分装保存，避免反复冻融造成的产品失效。 储备液的保存方式和期限：-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。 为了提高溶解度，请将管子加热至37℃，然后在超声波浴中震荡一段时间。 |
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| Shipping Condition | 评估样品解决方案：配备蓝冰进行发货。所有其他可用尺寸：配备RT，或根据请求配备蓝冰。 | ||
| 制备储备液 | |||
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1 mg | 5 mg | 10 mg |
| 1 mM | 3.5182 mL | 17.5908 mL | 35.1815 mL |
| 5 mM | 0.7036 mL | 3.5182 mL | 7.0363 mL |
| 10 mM | 0.3518 mL | 1.7591 mL | 3.5182 mL |
| 第一步：请输入基本实验信息（考虑到实验过程中的损耗，建议多配一只动物的药量） | ||||||||||
| 给药剂量 | mg/kg |  |
动物平均体重 | g | |
每只动物给药体积 | ul | |
动物数量 | 只 |
| 第二步：请输入动物体内配方组成（配方适用于不溶于水的药物；不同批次药物配方比例不同，请联系GLPBIO为您提供正确的澄清溶液配方） | ||||||||||
| % DMSO % % Tween 80 % saline | ||||||||||
| 计算重置 | ||||||||||
计算结果:
工作液浓度： mg/ml；
DMSO母液配制方法： mg 药物溶于 μL DMSO溶液（母液浓度 mg/mL，
体内配方配制方法：取 μL DMSO母液，加入 μL PEG300，混匀澄清后加入μL Tween 80，混匀澄清后加入 μL saline，混匀澄清。
1. 首先保证母液是澄清的；
2.
一定要按照顺序依次将溶剂加入，进行下一步操作之前必须保证上一步操作得到的是澄清的溶液，可采用涡旋、超声或水浴加热等物理方法助溶。
3. 以上所有助溶剂都可在 GlpBio 网站选购。
Quality Control & SDS
- View current batch:
- Purity: >99.50%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet