纯度 | >90%SDS-PAGE. |
种属 | Human |
靶点 | RPTOR |
Uniprot No | Q8N122 |
内毒素 | < 0.01EU/μg |
表达宿主 | E.coli |
表达区间 | 1-1335aa |
氨基酸序列 | MESEMLQSPLLGLGEEDEADLTDWNLPLAFMKKRHCEKIEGSKSLAQSWRMKDRMKTVSVALVLCLNVGVDPPDVVKTTPCARLECWIDPLSMGPQKALETIGANLQKQYENWQPRARYKQSLDPTVDEVKKLCTSLRRNAKEERVLFHYNGHGVPRPTVNGEVWVFNKNYTQYIPLSIYDLQTWMGSPSIFVYDCSNAGLIVKSFKQFALQREQELEVAAINPNHPLAQMPLPPSMKNCIQLAACEATELLPMIPDLPADLFTSCLTTPIKIALRWFCMQKCVSLVPGVTLDLIEKIPGRLNDRRTPLGELNWIFTAITDTIAWNVLPRDLFQKLFRQDLLVASLFRNFLLAERIMRSYNCTPVSSPRLPPTYMHAMWQAWDLAVDICLSQLPTIIEEGTAFRHSPFFAEQLTAFQVWLTMGVENRNPPEQLPIVLQVLLSQVHRLRALDLLGRFLDLGPWAVSLALSVGIFPYVLKLLQSSARELRPLLVFIWAKILAVDSSCQADLVKDNGHKYFLSVLADPYMPAEHRTMTAFILAVIVNSYHTGQEACLQGNLIAICLEQLNDPHPLLRQWVAICLGRIWQNFDSARWCGVRDSAHEKLYSLLSDPIPEVRCAAVFALGTFVGNSAERTDHSTTIDHNVAMMLAQLVSDGSPMVRKELVVALSHLVVQYESNFCTVALQFIEEEKNYALPSPATTEGGSLTPVRDSPCTPRLRSVSSYGNIRAVATARSLNKSLQNLSLTEESGGAVAFSPGNLSTSSSASSTLGSPENEEHILSFETIDKMRRASSYSSLNSLIGVSFNSVYTQIWRVLLHLAADPYPEVSDVAMKVLNSIAYKATVNARPQRVLDTSSLTQSAPASPTNKGVHIHQAGGSPPASSTSSSSLTNDVAKQPVSRDLPSGRPGTTGPAGAQYTPHSHQFPRTRKMFDKGPEQTADDADDAAGHKSFISATVQTGFCDWSARYFAQPVMKIPEEHDLESQIRKEREWRFLRNSRVRRQAQQVIQKGITRLDDQIFLNRNPGVPSVVKFHPFTPCIAVADKDSICFWDWEKGEKLDYFHNGNPRYTRVTAMEYLNGQDCSLLLTATDDGAIRVWKNFADLEKNPEMVTAWQGLSDMLPTTRGAGMVVDWEQETGLLMSSGDVRIVRIWDTDREMKVQDIPTGADSCVTSLSCDSHRSLIVAGLGDGSIRVYDRRMALSECRVMTYREHTAWVVKASLQKRPDGHIVSVSVNGDVRIFDPRMPESVNVLQIVKGLTALDIHPQADLIACGSVNQFTAIYNSSGELINNIKYYDGFMGQRVGAISCLAFHPHWPHLAVGSNDYYISVYSVEKRVR |
预测分子量 | 149 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. |
以下是关于RPTOR重组蛋白的3篇代表性文献及其摘要概括:
1. **文献名称**: "Raptor, a binding partner of target of rapamycin (TOR), mediates TOR action"
**作者**: Hara, K. et al. (2002)
**摘要**: 该研究首次克隆并鉴定了RPTOR(Raptor)作为mTOR的关键结合蛋白,揭示了其通过招募下游底物(如4E-BP1和S6K1)到mTOR复合体1(mTORC1)中,调控细胞生长与代谢的分子机制。实验中使用重组表达的RPTOR蛋白验证了其与mTOR的相互作用。
2. **文献名称**: "mTOR interacts with raptor to form a nutrient-sensitive complex that signals to the cell growth machinery"
**作者**: Kim, D.H. et al. (2002)
**摘要**: 研究阐明了RPTOR与mTOR形成复合物(mTORC1)的结构基础,并证明该复合物通过感知氨基酸和生长因子信号调控蛋白质合成。通过重组RPTOR蛋白的功能域分析,揭示了其在底物识别和信号传递中的关键作用。
3. **文献名称**: "Regulation of mTORC1 by the Rag GTPases is necessary for neonatal autophagy and survival"
**作者**: Sancak, Y. et al. (2010)
**摘要**: 本文发现RPTOR在mTORC1响应Rag GTPases介导的氨基酸信号中起核心作用,通过重组蛋白实验证明RPTOR直接与Rag蛋白相互作用,调控mTORC1的溶酶体定位及自噬功能,从而影响细胞能量稳态。
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**备注**:以上文献均为mTORC1信号通路领域的经典研究,RPTOR重组蛋白的应用多集中于其与mTOR复合物的组装、底物结合及信号传导机制的解析。如需具体实验方案,可进一步检索近年方法学论文。
RPTOR (Regulatory-associated protein of mTOR) is a critical component of the mechanistic target of rapamycin complex 1 (mTORC1), a central signaling hub that regulates cell growth, proliferation, metabolism, and autophagy in response to nutrients, growth factors, and cellular stress. As a scaffolding protein, RPTOR directly interacts with mTOR kinase to stabilize the mTORC1 complex and recruit downstream substrates for phosphorylation. Its structural and regulatory roles make it indispensable for mTORC1-mediated signaling pathways, including the promotion of anabolic processes like protein synthesis and inhibition of catabolic processes such as autophagy.
Recombinant RPTOR proteins are engineered in vitro using genetic engineering techniques, typically expressed in bacterial (e.g., *E. coli*) or mammalian cell systems. These proteins retain functional domains required for mTOR binding and substrate recognition, enabling researchers to study mTORC1 assembly, activity modulation, and interactions with regulatory partners like raptor-independent companions (e.g., PRAS40) or inhibitors (e.g., rapamycin). Recombinant RPTOR is widely used in biochemical assays, including kinase activity assays, protein-protein interaction studies, and structural analyses (e.g., cryo-EM or X-ray crystallography) to elucidate mTORC1 activation mechanisms.
Dysregulation of mTORC1 signaling is implicated in cancer, metabolic disorders, and neurodegenerative diseases. Recombinant RPTOR facilitates drug discovery by serving as a tool to screen mTORC1-targeting therapeutics or investigate mutations affecting mTOR pathway fidelity. Its applications extend to understanding nutrient-sensing mechanisms, aging-related research, and personalized medicine approaches where mTORC1 hyperactivation drives pathology. Overall, recombinant RPTOR provides a versatile platform for dissecting mTOR biology and developing precision therapies.
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