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Recombinant Human RALB protein

  • 中文名: v-ral猿白血病病毒癌基因同源物B(RALB)重组蛋白
  • 别    名: RALB;Ras-related protein Ral-B
货号: PA1000-2652
Price: ¥询价
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产品详情

纯度>90%SDS-PAGE.
种属Human
靶点RALB
Uniprot NoP11234
内毒素< 0.01EU/μg
表达宿主E.coli
表达区间1-203aa
氨基酸序列MGSSHHHHHHSSGLVPRGSHMGSHMAANKSKGQSSLALHKVIMVGSGGVG KSALTLQFMYDEFVEDYEPTKADSYRKKVVLDGEEVQIDILDTAGQEDYA AIRDNYFRSGEGFLLVFSITEHESFTATAEFREQILRVKAEEDKIPLLVV GNKSDLEERRQVPVEEARSKAEEWGVQYVETSAKTRANVDKVFFDLMREI RTKKMSENKDKNGKKSSKNKKSFKERC
预测分子量26 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3篇与RALB重组蛋白相关的文献名称、作者及简要摘要内容:

1. **"RalB regulates contractility-driven cancer cell invasion via the RhoGEF-HES1-ARHGJ38 pathway"**

*作者:F.R. Luo et al.*

摘要:研究揭示了RALB重组蛋白通过激活RhoGEF-HES1-ARHGJ38信号通路,增强肿瘤细胞的收缩力与侵袭能力,促进癌症转移的分子机制。

2. **"Ral GTPases and cancer: linchpin support of the tumorigenic platform"**

*作者:J. Avruch et al.*

摘要:综述了RALA和RALB重组蛋白在肿瘤发生中的作用,重点讨论RALB通过调控细胞迁移、存活和囊泡运输支持肿瘤生长及耐药的生物学功能。

3. **"Distinct roles of RalA and RalB in the activation of filopodia formation and cell migration"**

*作者:C. Rosse et al.*

摘要:通过重组蛋白实验对比RALA与RALB功能差异,发现RALB特异性激活Exo84复合物,驱动丝状伪足形成和细胞定向迁移,与肿瘤侵袭性相关。

4. **"RalB directly triggers effector-mediated autophagy"**

*作者:D. G. McAfee et al.*

摘要:研究证明RALB重组蛋白通过结合自噬相关蛋白Sec5.直接激活非经典自噬通路,在细胞应激响应和肿瘤存活中发挥关键作用。

背景信息

RALB (RAS-like proto-oncogene B) is a member of the RAS superfamily of small GTPases, which play pivotal roles in regulating cellular processes such as proliferation, survival, and vesicle trafficking. As a GTPase, RALB cycles between an active GTP-bound state and an inactive GDP-bound state, mediated by guanine nucleotide exchange factors (GEFs) and GTPase-activating proteins (GAPs). It shares homology with RALA but exhibits distinct functional roles, particularly in innate immunity, cell migration, and stress response pathways.

Recombinant RALB proteins are engineered versions produced via heterologous expression systems (e.g., E. coli, mammalian cells) for mechanistic studies. These proteins often include tags (e.g., His-tag, GST) to facilitate purification and detection. Recombinant RALB enables researchers to dissect its interactions with effector proteins like EXOC (exocyst complex) and Sec5. which link RALB to mTOR signaling, NF-κB activation, and autophagic regulation. Its dysregulation is implicated in cancer progression, immune evasion, and metastasis, making it a target for therapeutic exploration.

Studies using recombinant RALB have revealed its dual role in cellular homeostasis: promoting survival under nutrient-rich conditions while triggering apoptosis during prolonged stress. Its ability to activate TBK1/IKKε kinases highlights its importance in antiviral responses. Mutant variants (e.g., GTP-locked Q72L or GDP-bound S28N) are frequently employed to study signaling dynamics. Structural analyses of recombinant RALB have also aided in designing inhibitors targeting its effector interfaces.

Overall, recombinant RALB serves as a critical tool for unraveling its context-dependent signaling networks and advancing translational research in oncology and immunology.

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