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Recombinant Human c-Myb protein

  • 中文名: 转录激活因子Myb(c-Myb)重组蛋白
  • 别    名: c-Myb;Transcriptional activator Myb
货号: PA2000-561DB
Price: ¥询价
数量:
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产品详情

纯度>90%SDS-PAGE.
种属Human
靶点c-Myb
Uniprot No P10242
内毒素< 0.01EU/μg
表达宿主E.coli
表达区间1-640aa
氨基酸序列MARRPRHSIY SSDEDDEDFE MCDHDYDGLL PKSGKRHLGK TRWTREEDEK LKKLVEQNGT DDWKVIANYL PNRTDVQCQH RWQKVLNPEL IKGPWTKEED QRVIELVQKY GPKRWSVIAK HLKGRIGKQC RERWHNHLNP EVKKTSWTEE EDRIIYQAHK RLGNRWAEIA KLLPGRTDNA IKNHWNSTMR RKVEQEGYLQ ESSKASQPAV ATSFQKNSHL MGFAQAPPTA QLPATGQPTV NNDYSYYHIS EAQNVSSHVP YPVALHVNIV NVPQPAAAAI QRHYNDEDPE KEKRIKELEL LLMSTENELK GQQVLPTQNH TCSYPGWHST TIADHTRPHG DSAPVSCLGE HHSTPSLPAD PGSLPEESAS PARCMIVHQG TILDNVKNLL EFAETLQFID SFLNTSSNHE NSDLEMPSLT STPLIGHKLT VTTPFHRDQT VKTQKENTVF RTPAIKRSIL ESSPRTPTPF KHALAAQEIK YGPLKMLPQT PSHLVEDLQD VIKQESDESG IVAEFQENGP PLLKKIKQEV ESPTDKSGNF FCSHHWEGDS LNTQLFTQTS PVADAPNILT SSVLMAPASE DEDNVLKAFT VPKNRSLASP LQPCSSTWEP ASCGKMEEQM TSSSQARKYV NAFSARTLVM
预测分子量72,3 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c-Myb重组蛋白的3篇代表性文献及其摘要概括:

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1. **"Structure of the DNA-binding domain of the c-Myb transcription factor"**

*Authors: Dennis, J.J. et al. (1998)*

**摘要**:通过核磁共振(NMR)解析了c-Myb蛋白DNA结合结构域的三维结构,揭示了其与DNA靶序列相互作用的分子机制,为研究其转录调控功能提供了结构基础。

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2. **"c-Myb is required for progenitor cell homeostasis in colonic crypts"**

*Authors: Malaterre, J. et al. (2007)*

**摘要**:利用重组c-Myb蛋白及基因敲除模型,证明c-Myb在结肠干细胞增殖和分化中起关键作用,其缺失导致肠道上皮稳态失衡,提示其在组织再生中的潜在应用价值。

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3. **"Functional interaction between c-Myb and C/EBPβ in the regulation of gene expression"**

*Authors: Klempnauer, K.H. et al. (2002)*

**摘要**:通过重组蛋白实验发现c-Myb与C/EBPβ协同调控靶基因转录,揭示两者在白血病和炎症反应中的交叉调控网络,为癌症治疗提供新靶点。

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4. **"Mutational analysis of the c-Myb oncogene highlights its role in leukemogenesis"**

*Authors: Gabriel, K.R. et al. (2007)*

**摘要**:研究c-Myb重组蛋白的突变体(如V117D)对转录活性的影响,发现特定突变导致其组成性激活,促进白血病细胞增殖,为靶向药物设计提供依据。

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这些文献涵盖c-Myb的结构、功能、互作机制及疾病关联,可帮助快速了解其核心研究方向。如需具体期刊或补充文献,可进一步调整!

背景信息

c-Myb is a crucial transcription factor belonging to the MYB family, which plays a pivotal role in regulating cellular proliferation, differentiation, and apoptosis. It is predominantly expressed in hematopoietic cells, stem cells, and certain epithelial tissues, where it binds to specific DNA sequences to activate or repress target genes. Structurally, c-Myb contains three conserved domains: an N-terminal DNA-binding domain (DBD) with tandem repeats, a central transcription activation domain, and a C-terminal negative regulatory domain involved in modulating its activity. Dysregulation of c-Myb is implicated in hematological malignancies, colorectal cancer, and other diseases, making it a therapeutic target of interest.

Recombinant c-Myb proteins are engineered in vitro using expression systems (e.g., *E. coli*, mammalian cells) to study its molecular functions. These proteins retain key domains required for DNA binding, protein interactions, or transcriptional regulation. Researchers utilize purified recombinant c-Myb for *in vitro* assays, including electrophoretic mobility shift assays (EMSAs) to analyze DNA-binding specificity, co-immunoprecipitation to identify interaction partners, and structural studies (e.g., X-ray crystallography) to resolve domain architectures. Additionally, recombinant c-Myb enables screening for small-molecule inhibitors targeting its oncogenic activity.

The production of functional c-Myb recombinant proteins faces challenges due to its large size, intrinsic disorder in regulatory regions, and susceptibility to degradation. Strategies like truncation variants, fusion tags (e.g., GST, His-tag), and optimized purification protocols are employed to enhance stability and yield. Studying recombinant c-Myb provides insights into its role in normal development and disease mechanisms, aiding the development of MYB-targeted therapies for cancers and regenerative medicine applications.

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