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Recombinant Human DNASE1 protein

  • 中文名: 脱氧核糖核酸酶Ⅰ(DNASE1)重组蛋白
  • 别    名: DNASE1;DNL1;DRNI;Deoxyribonuclease-1
货号: PA1000-5844
Price: ¥询价
数量:
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产品详情

纯度>90%SDS-PAGE.
种属Human
靶点DNASE1
Uniprot NoP24855
内毒素< 0.01EU/μg
表达宿主E.coli
表达区间19-259aa
氨基酸序列GA VSLKIAAFNI QTFGETKMSN ATLVSYIVQI LSRYDIALVQ EVRDSHLTAV GKLLDNLNQD APDTYHYVVS EPLGRNSYKE RYLFVYRPDQ VSAVDSYYYD DGCEPCGNDT FNREPAIVRF FSRFTEVREF AIVPLHAAPG DAVAEIDALY DVYLDVQEKW GLEDVMLMGD FNAGCSYVRP SQWSSIRLWT SPTFQWLIPD SADTTATPTH CAYDRIVVAG MLLRGAVVPD SALPFNFQA
预测分子量31 kDa
蛋白标签His tag N-Terminus
缓冲液PBS, pH7.4, containing 0.01% SKL, 1mM DTT, 5% Trehalose and Proclin300.
稳定性 & 储存条件Lyophilized protein should be stored at ≤ -20°C, stable for one year after receipt.
Reconstituted protein solution can be stored at 2-8°C for 2-7 days.
Aliquots of reconstituted samples are stable at ≤ -20°C for 3 months.
复溶Always centrifuge tubes before opening.Do not mix by vortex or pipetting.
It is not recommended to reconstitute to a concentration less than 100μg/ml.
Dissolve the lyophilized protein in distilled water.
Please aliquot the reconstituted solution to minimize freeze-thaw cycles.

参考文献

以下是关于重组DNASE1蛋白的3篇参考文献及其摘要概括:

1. **标题**: "Production and characterization of recombinant human DNASE1 in mammalian cells"

**作者**: Smith A, et al.

**摘要**: 研究利用哺乳动物细胞系统高效表达具有生物活性的重组人DNASE1.证实其可有效降解细胞外DNA,并探讨其在抗炎治疗中的应用潜力。

2. **标题**: "Engineering thermostable recombinant DNASE1 for enhanced pulmonary delivery"

**作者**: Chen X, et al.

**摘要**: 通过蛋白质工程改造获得热稳定性增强的重组DNASE1突变体,优化其雾化吸入性能,为囊性纤维化患者的长期稳定治疗提供新策略。

3. **标题**: "Recombinant DNASE1 inhibits tumor metastasis by disrupting neutrophil extracellular traps"

**作者**: Tanaka M, et al.

**摘要**: 发现重组DNASE1通过分解肿瘤微环境中的NETs(中性粒细胞胞外陷阱),显著抑制小鼠模型中肿瘤细胞的转移,揭示其抗癌治疗新机制。

注:上述文献为示例性质,实际引用时需核实具体论文信息。建议通过PubMed或Web of Science以关键词"recombinant DNASE1"、"DNASE1 therapy"等检索最新研究。

背景信息

**Background of Recomcombinant DNASE1 Protein**

Deoxyribonuclease I (DNASE1), also known as bovine pancreatic DNase, is a glycoprotein endonuclease that cleaves double-stranded DNA into oligonucleotides by hydrolyzing phosphodiester bonds. Naturally produced in vertebrates, DNASE1 plays a critical role in degrading extracellular DNA during apoptosis, preventing autoimmunity triggered by self-DNA accumulation. Its ability to digest chromatin and extracellular DNA also makes it essential in maintaining tissue homeostasis and reducing inflammation.

Recombinant DNASE1 is engineered using genetic cloning techniques, where the human *DNASE1* gene is expressed in host systems like *E. coli*, yeast, or mammalian cell lines. This recombinant form retains the enzymatic activity of native DNASE1 but offers advantages such as high purity, scalability, and reduced immunogenicity. It is widely utilized in biomedical research, including studies on chromatin remodeling, cell death mechanisms, and neutrophil extracellular trap (NET) degradation.

Therapeutically, recombinant DNASE1 (e.g., dornase alfa) is FDA-approved for treating cystic fibrosis (CF). In CF patients, viscous mucus in airways contains high levels of DNA released by neutrophils, contributing to respiratory obstruction. DNASE1 inhalation therapy hydrolyzes this DNA, reducing mucus viscosity and improving lung function. Beyond CF, its potential applications extend to chronic obstructive pulmonary disease (COPD), systemic lupus erythematosus (SLE), and other conditions involving pathogenic DNA accumulation.

Structurally, recombinant DNASE1 typically includes a signal peptide for secretion and may undergo post-translational modifications (e.g., glycosylation) depending on the expression system. Researchers continue to explore engineered variants with enhanced stability or targeting capabilities, underscoring its versatility as both a therapeutic agent and a molecular biology tool.

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