Analytical Data
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基因名
TOP1
- Application
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别名
TOP1；DNA topoisomerase 1
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种属
Human
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表达系统
E. coli
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标签
His tag N-Terminus
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纯度
Greater than 90% as determined by SDS-PAGE.
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蛋白编号
P11387
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表达区间
190-765aa
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氨基酸序列
NKKKKPKKEEEQKWKWWEEERYPEGIKWKFLEHKGPVFAPPYEPLPENVKFYYDGKVMKLSPKAEEVATFFAKMLDHEYTTKEIFRKNFFKDWRKEMTNEEKNIITNLSKCDFTQMSQYFKAQTEARKQMSKEEKLKIKEENEKLLKEYGFCIMDNHKERIANFKIEPPGLFRGRGNHPKMGMLKRRIMPEDIIINCSKDAKVPSPPPGHKWKEVRHDNKVTWLVSWTENIQGSIKYIMLNPSSRIKGEKDWQKYETARRLKKCVDKIRNQYREDWKSKEMKVRQRAVALYFIDKLALRAGNEKEEGETADTVGCCSLRVEHINLHPELDGQEYVVEFDFLGKDSIRYYNKVPVEKRVFKNLQLFMENKQPEDDLFDRLNTGILNKHLQDLMEGLTAKVFRTYNASITLQQQLKELTAPDENIPAKILSYNRANRAVAILCNHQRAPPKTFEKSMMNLQTKIDAKKEQLADARRDLKSAKADAKVMKDAKTKKVVESKKKAVQRLEEQLMKLEVQATDREENKQIALGTSKLNYLDPRITVAWCKKWGVPIEKIYNKTQREKFAWAIDMADEDYEF
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分子量
72.2 kDa
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内毒素
< 1.0 EU per μg protein as determined by the LAL method.
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性状
Freeze-dried powder
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缓冲液
PBS, pH7.4, containing 0.01% SKL, 1mM DTT, 5% Trehalose and Proclin300.
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复溶方法
Reconstitute in ddH2O to a concentration of 0.1-0.5 mg/mL. Do not vortex.
- 个性化定制
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稳定性测试
The thermal stability is described by the loss rate. The loss rate was determined by accelerated thermal degradation test, that is, incubate the protein at 37℃ for 48h, and no obvious degradation and precipitation were observed. The loss rate isless than 8% within the expiration date under appropriate storage condition.
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保存条件 & 期限
Samples are stable for up to twelve months from date of receipt at -20℃ to -80℃. Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
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运输条件
In general, recombinant proteins are supplied as lyophilized powder and shipped at ambient temperature. For bulk packages, the proteins are provided as frozen liquid and shipped with blue ice, unless otherwise requested by the customer.
Quality inspection process
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Protein Description
TOP1, or topoisomerase I, is a crucial enzyme that plays a vital role in DNA replication, transcription, and repair by alleviating the torsional strain generated ahead of the replication fork. The study of TOP1 is significant due to its implications in cancer therapy, as it is a primary target for several anti-cancer drugs, including camptothecin and its derivatives. These compounds exploit the enzyme's activity, leading to the stabilization of DNA breaks during replication, ultimately triggering cell death in rapidly dividing cancer cells. Understanding the structure, function, and mechanisms of TOP1 is essential for enhancing the efficacy of these therapeutic agents and for the development of new inhibitors that can circumvent drug resistance. Moreover, research into the post-translational modifications and regulatory mechanisms of TOP1 provides valuable insights into its diverse roles in cellular processes. Given its importance in both normal cellular function and cancer biology, ongoing investigations into TOP1 continue to reveal its potential as a biomarker for tumor progression and a strategic target for innovative cancer treatments, thereby underscoring its relevance in the fields of molecular biology and pharmacology.
