纯度 | >90%SDS-PAGE. |
种属 | Human |
靶点 | STRAP |
Uniprot No | Q9Y3F4 |
内毒素 | < 0.01EU/μg |
表达宿主 | E.coli |
表达区间 | 1-350aa |
氨基酸序列 | MAMRQTPLTCSGHTRPVVDLAFSGITPYGYFLISACKDGKPMLRQGDTGDWIGTFLGHKGAVWGATLNKDATKAATAAADFTAKVWDAVSGDELMTLAHKHIVKTVDFTQDSNYLLTGGQDKLLRIYDLNKPEAEPKEISGHTSGIKKALWCSEDKQILSADDKTVRLWDHATMTEVKSLNFNMSVSSMEYIPEGEILVITYGRSIAFHSAVSLDPIKSFEAPATINSASLHPEKEFLVAGGEDFKLYKYDYNSGEELESYKGHFGPIHCVRFSPDGELYASGSEDGTLRLWQTVVGKTYGLWKCVLPEEDSGELAKPKIGFPETTEEELEEIASENSDCIFPSAPDVKA |
预测分子量 | 65.4 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STRAP(丝氨酸/苏氨酸激酶受体相关蛋白)重组蛋白的模拟参考文献示例,供参考(注:部分信息可能为假设性概括,建议通过学术数据库核实最新文献):
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1. **文献名称**:*STRAP regulates TGF-β signaling by stabilizing the TGF-β type I receptor kinase*
**作者**:Datta PK, et al.
**摘要**:研究揭示了STRAP通过结合并稳定TGF-β I型受体(TβRI),增强其激酶活性,从而促进TGF-β/Smad信号通路的传导,并探讨其在肿瘤进展中的作用。
2. **文献名称**:*STRAP acts as a molecular chaperone to promote cancer metastasis via ERK signaling*
**作者**:Halder SK, et al.
**摘要**:报道了STRAP重组蛋白在胃癌细胞中的表达机制,证明其通过激活ERK信号通路增强肿瘤细胞侵袭性,并作为分子伴侣调控关键癌蛋白稳定性。
3. **文献名称**:*Interaction of STRAP with p53 modulates apoptosis in colorectal cancer*
**作者**:Pouladi N, et al.
**摘要**:通过体外重组蛋白实验,发现STRAP与p53直接结合并抑制其转录活性,导致结直肠癌细胞凋亡受阻,提示其作为潜在治疗靶点。
4. **文献名称**:*Recombinant STRAP protein expression and purification for functional studies*
**作者**:Chen L, et al.
**摘要**:描述了STRAP重组蛋白在大肠杆菌中的高效表达与纯化方法,并验证其与Smad蛋白的相互作用,为后续功能研究提供技术基础。
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**注意**:以上内容为示例,实际文献需通过PubMed、Web of Science等平台检索关键词(如“STRAP recombinant protein”“STRAP cancer signaling”)获取。若需具体文献,请提供更多研究背景或访问学术数据库。
**Background of STRAP Recombinant Protein**
STRAP (Serine-Threonine Kinase Receptor-Associated Protein) is a multifunctional adaptor protein implicated in regulating diverse cellular processes, including signal transduction, cell proliferation, and apoptosis. It belongs to the WD40-repeat protein family, characterized by its conserved β-propeller structure formed by WD40 repeats, which mediate protein-protein interactions. STRAP acts as a scaffold, coordinating interactions between kinases, transcription factors, and other signaling molecules.
A key role of STRAP is its involvement in the TGF-β (Transforming Growth Factor-Beta) signaling pathway, where it modulates SMAD protein activity. By binding to SMAD7 and type I TGF-β receptors, STRAP influences SMAD complex formation, thereby regulating TGF-β-mediated responses such as cell differentiation, fibrosis, and immune regulation. Additionally, STRAP interacts with stress-activated kinases (e.g., p38 MAPK) and PI3K/AKT pathways, linking it to cellular stress responses and survival mechanisms.
In cancer biology, STRAP exhibits dual roles. It can act as an oncogene by promoting tumor cell survival, migration, and chemoresistance in cancers like glioblastoma or colorectal carcinoma. Conversely, it may function as a tumor suppressor in certain contexts by stabilizing p53 or inhibiting EMT (Epithelial-Mesenchymal Transition). Dysregulation of STRAP expression is associated with poor prognosis in multiple malignancies, highlighting its therapeutic potential.
Recombinant STRAP proteins are engineered to study these mechanisms. Produced via bacterial or mammalian expression systems, they retain functional domains for in vitro binding assays, structural studies, or screening for inhibitors. Tagged versions (e.g., His-, GST-, or FLAG-tagged) facilitate purification and detection. Such tools are vital for deciphering STRAP’s post-translational modifications (e.g., phosphorylation, ubiquitination) and its crosstalk with signaling networks, aiding drug development for cancers and fibrotic diseases.
In summary, STRAP’s versatility in cellular signaling and disease contexts makes it a compelling target for biomedical research, with recombinant proteins serving as essential reagents for mechanistic and translational studies.
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艾普蒂生物自主研发并建立综合性重组蛋白生产和抗体开发技术平台,包括: 哺乳动物细胞表达平台:利用哺乳动物细胞精准修饰蛋白,产出与天然蛋白相似的重组蛋白,用于药物研发、细胞治疗等。 杂交瘤开发平台:通过细胞融合筛选出稳定分泌单克隆抗体的杂交瘤细胞株,优化后的技术让抗体亲和力与特异性更高,应用于疾病诊断、免疫治疗等领域。 单 B 细胞筛选平台:FACS 用荧光标记和流式细胞仪快速分选特定 B 细胞;Beacon® 基于微流控技术,单细胞水平捕获、分析 B 细胞,挖掘抗体多样性,缩短开发周期。 凭借这些平台,艾普蒂生物为客户提供优质试剂和专业 CRO 技术服务,推动生物科技发展。
艾普蒂生物在重组蛋白和天然蛋白开发领域经验十分丰富,拥有超过 2 万种重组蛋白的开发案例。在四大重组蛋白表达平台的运用上,艾普蒂生物不仅经验老到,还积累了详实的成功案例。针对客户的工业化生产需求,我们能够定制并优化实验方案。通过小试探索、工艺放大以及条件优化等环节,对重组蛋白基因序列进行优化,全面探索多种条件,精准找出最契合客户需求的生产方法。 此外,公司还配备了自有下游验证平台,可对重组蛋白展开系统的质量检测与性能测试,涵盖蛋白互作检测、活性验证、内毒素验证等,全方位保障产品质量。 卡梅德生物同样重视蛋白工艺开发,确保生产出的蛋白质具备所需的纯度、稳定性与生物活性,这对于保障药物的安全性和有效性起着关键作用 ,与艾普蒂生物共同推动着行业的发展。
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