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服务介绍 酵母双杂交及系统是一种鉴定和检测蛋白质相互作用的研究方法,因其具有灵敏性高、功能强大、适用范围广等特点,现已被应用于多个研究领域。 核系统酵母双杂交: 核系统酵母双杂交技术最初由Fields等人在研究酵母转录因子GAL4性质时建立,后续经过不断改进已发展成为一种成熟的蛋白-蛋白互作研究工具,具有简便、灵敏、可反映蛋白在活细胞内互作真实情况的特点,被广泛应用于互作蛋白的筛选、蛋白相互作用的鉴定/验证、蛋白互作机理的探究、蛋白连锁图谱绘制等工作。 膜系统酵母双杂交: DUALmembrane技术在传统的酵母双杂交系统的基础上,巧妙地利用分离的泛素系统(split-ubiquitin) 进行蛋白质相互作用的筛选;泛素作为降解信号分子,人为分成两部分:N端 (Nub),C端 (Cub),互补重构的完整泛素分子可被泛素专一性蛋白酶(UBPs)识别,从而导致与泛素相连的蛋白被酶解。 全能型酵母双杂交: DUALhunter 系统是在 DUALmembrane 系统技术的基础上,做了适当的修改,将诱饵蛋白通过Ost1膜锚定结构将非膜结构蛋白锚定在细胞膜,适用于浆蛋白、膜蛋白、细胞器蛋白、自激活蛋白。此技术的推出更大程度地扩大了酵母双杂交的应用范围。 服务优势 ▶多年文库构建经验,有效保证文库质量; ▶三框均一化技术,有效保证文库基因正确翻译和基因覆盖均一度; ▶一站式辅助生信分析,得到可靠的实验结论; ▶直接检测蛋白质之间的相互作用,而不依赖于其他分子或细胞的参与; ▶可同时筛选和鉴定多个蛋白质间的相互作用,实现高通量的筛选和分析; ▶采用多个筛选步骤,如报告基因的验证和酵母菌株的双重选择,可以减少非特异性相互作用的假阳性结果; ▶可通过报告基因的表达水平定量评估蛋白质相互作用的强度,进一步了解相互作用的动力学和功能。 服务流程 酵母双杂交文库构建
酵母双杂交文库筛选
酵母双杂交验证
文案展示 (1) 核系统酵母双杂交 Tuber mustard BjuFIP gene negatively regulates plant sensitivity to abscisic acid 期刊:Scientific Reports
Protein motif analysis of BjuFIP and the interaction analysis of BjuFIP with 3 BjuASK1 in Y-2-H and BiFC assays.4 (A) Protein motif analysis of BjuFIP. FBOX domain: a receptor for ubiquitination targets. 5 (B) The F-box protein BjuFIP was found to interact with BjuASK1 by Y-2-H growth 6 assay performed on SD media lacking Leu and Trp (-WL) and Ade, His, Leu, and Trp 7 (-WLHA). Saturated cultures were spotted onto SD media lacking Ade, His, Leu, and 8 Trp (-WLHA) at different dilutions (OD600=1, 0.1, 0.01, and 0.001). The vectors AD-T 9 and BD-53 were used as positive controls and the emptyvectors AD and BD were used 10 as negative controls. (2) 膜系统酵母双杂交 A Bacterial-Type ABC Transporter Is Involved in Aluminum Tolerance in Rice 期刊:The Plant Cell
DUALmembrane system. STAR1 and STAR2 were fused to the C-terminal half (Cub) and the mutated N-terminal half (NubG) of ubiquitin,respectively. Yeast cells were cotransformed with various plasmid combinations as indicated at the right and were grown on SD medium without Leu and Trp as a control (left panel) or on a selective medium for protein interaction (right panel) without Leu, Trp, His, and Ade and containing 10 mM 3-aminotriazole at different concentrations (10 times dilution from left side). All plates were grown for 3 d at 30℃. (3) 全能型酵母双杂交 An Arabidopsis Dual-Localized Pentatricopeptide Repeat Protein Interacts with Nuclear Proteins Involved in Gene Expression Regulation 期刊:The Plant Cell
Yeast two-hybrid–like assays show that PNM1 interacts with NAP1 and TCP8. Yeast cells were cotransformed with X-Cub and Nub-X constructs. Liquid cultures of double transformants are plated at DO600 = 0.1 and at increasing 103 and 1003 dilutions of the cultures (black triangles) on synthetic dropout selective medium that lacked Leu, His, adenine and Trp supplemented with 10 mM 3-amino-1,2,4-triazole. NubWT represents the nonmutated form of the N-terminal part of ubiquitin and was used here as a positive control for interactions with Cub constructs. 适用领域 ▶蛋白质相互作用研究:酵母双杂交技术广泛应用于研究蛋白质之间的相互作用网络。通过识别和验证蛋白质间的相互作用关系,可以揭示蛋白质复合物的组成和结构,从而深入了解细胞信号传导、转录调控、代谢途径等生物过程。 ▶蛋白质功能研究:通过酵母双杂交技术,可以研究蛋白质的功能和调控机制。例如,通过识别蛋白质与转录因子、核酸结合蛋白等的相互作用,可以了解蛋白质在基因调控中的作用,以及调控网络的建立和维持。 ▶进化生物学研究:酵母双杂交技术可以用于研究物种间的蛋白质相互作用。通过比较不同物种中的相互作用网络,可以了解蛋白质相互作用的进化变化,探究物种适应性和进化的基础。 上一篇LexA-MSII酵母三杂下一篇NMY51-MEL1 |





