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Recombinant Human dhaK protein

  • 中文名: 弗氏柠檬酸杆菌二羟丙酮激酶(dhaK)重组蛋白
  • 别    名: dhaK;DAK;Triokinase/FMN cyclase
货号: PA2000-2642
Price: ¥询价
数量:
大包装询价

产品详情

纯度>90%SDS-PAGE.
种属Human
靶点dhaK
Uniprot NoP0A6Y8
内毒素< 0.01EU/μg
表达宿主E.coli
表达区间1-638aa
氨基酸序列MGKIIGIDLG TTNSCVAIMD GTTPRVLENA EGDRTTPSII AYTQDGETLV GQPAKRQAVT NPQNTLFAIK RLIGRRFQDE EVQRDVSIMP FKIIAADNGD AWVEVKGQKM APPQISAEVL KKMKKTAEDY LGEPVTEAVI TVPAYFNDAQ RQATKDAGRI AGLEVKRIIN EPTAAALAYG LDKGTGNRTI AVYDLGGGTF DISIIEIDEV DGEKTFEVLA TNGDTHLGGE DFDSRLINYL VEEFKKDQGI DLRNDPLAMQ RLKEAAEKAK IELSSAQQTD VNLPYITADA TGPKHMNIKV TRAKLESLVE DLVNRSIEPL KVALQDAGLS VSDIDDVILV GGQTRMPMVQ KKVAEFFGKE PRKDVNPDEA VAIGAAVQGG VLTGDVKDVL LLDVTPLSLG IETMGGVMTT LIAKNTTIPT KHSQVFSTAE DNQSAVTIHV LQGERKRAAD NKSLGQFNLD GINPAPRGMP QIEVTFDIDA DGILHVSAKD KNSGKEQKIT IKASSGLNED EIQKMVRDAE ANAEADRKFE ELVQTRNQGD HLLHSTRKQV EEAGDKLPAD DKTAIESALT ALETALKGED KAAIEAKMQE LAQVSQKLME IAQQQHAQQQ TAGADASANN AKDDDVVDAE FEEVKDKK
预测分子量69 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dhaK重组蛋白的3篇代表性文献概览(内容为模拟概括,仅供参考):

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1. **文献名称**:*Structural and functional characterization of recombinant DhaK from Escherichia coli*

**作者**:Daniel R., et al.

**摘要**:本研究成功在大肠杆菌中克隆表达并纯化了重组DhaK蛋白(二羟基丙酮激酶),通过X射线晶体学解析其三维结构,揭示了ATP结合域和底物识别机制,并验证了其在甘油代谢途径中的关键作用。

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2. **文献名称**:*Enhancement of glycerol utilization in engineered strains via overexpression of recombinant DhaK complex*

**作者**:Zhang Y., et al.

**摘要**:通过在大肠杆菌中过表达重组DhaK-DhaL-DhaM复合体,显著提高了菌株对甘油的摄取效率,优化了1.3-丙二醇的合成途径,为生物燃料生产提供了新策略。

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3. **文献名称**:*Kinetic analysis of recombinant DhaK enzyme and its role in stress response*

**作者**:Lee S., et al.

**摘要**:纯化重组DhaK并测定其酶动力学参数(Km和Vmax),发现其在高盐环境下活性显著上调,提示DhaK可能参与细菌渗透压应激调控,为微生物适应性研究提供依据。

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(注:以上文献信息为示例性模拟,实际引用需检索真实数据库如PubMed或Web of Science。)

背景信息

DhaK recombinant protein is derived from the dhaK gene encoding the dihydroxyacetone kinase subunit K, a key enzyme in the glycerol metabolism pathway of *Escherichia coli* and other bacteria. This enzyme plays a critical role in the catabolism of glycerol, a common carbon source, by catalyzing the ATP-dependent phosphorylation of dihydroxyacetone (DHA) to dihydroxyacetone phosphate (DHAP), which enters glycolysis. The DhaK protein is part of a multicomponent phosphotransferase system (PTS) that also includes DhaL (regulatory subunit) and DhaM (phosphocarrier protein), enabling efficient glycerol utilization under anaerobic conditions.

Recombinant DhaK is typically produced via heterologous expression in bacterial hosts (e.g., *E. coli*) using plasmid-based systems, allowing high-yield purification for structural and functional studies. Its recombinant form has been instrumental in elucidating enzymatic mechanisms, substrate specificity, and regulatory interactions within the glycerol metabolic pathway. Researchers also leverage DhaK to study bacterial adaptation to environmental stress, carbon source switching, and metabolic engineering strategies for bioproduction.

Beyond basic research, DhaK recombinant protein has applications in industrial biotechnology, such as optimizing microbial cell factories for biofuel or chemical synthesis from glycerol byproducts. Structural analyses of recombinant DhaK (e.g., X-ray crystallography) further aid in enzyme engineering to enhance catalytic efficiency or stability. Studies on DhaK also contribute to understanding microbial pathogenesis, as glycerol metabolism is linked to virulence in some pathogens. Overall, DhaK recombinant protein serves as a vital tool for advancing both fundamental microbiology and applied biotechnologies.

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