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Proximity Binding Assay for PROTAC Ternary Complex Analysis

delete2026-04-21
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OA
AI
I
Irene Ponzo
A
Alice Soldà
C
Charlotte Crowe
G
Göran Dahl
T
Tereza Jahodová
A
Andreas Heerwig
S
Stefan Geschwindner *
A
Alessio Ciulli *
U
Ulrich Rant *
DOI:10.1021/acssensors.5c04944delete
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摘要

摘要

En 中文
工程化构建由小分子(如PROTACs或分子胶)桥接两种蛋白质的三元复合物,是实现靶向酶解致病蛋白的前提;然而,在药物发现过程中对这些三元相互作用的综合分析仍然具有挑战性。在此,我们介绍了一种邻近结合测定法,可在生物传感器表面同时测量二元和三元相互作用的动力学。靶蛋白和泛素E3连接酶的底物结合亚基被连接到Y形DNA支架的可移动旋转臂上。Y结构诱导蛋白质间的空间邻近,并将其暴露给流过传感器的PROTAC分析物。PROTAC诱导的三元复合物形成通过荧光能量转移(FRET)测量,而二元相互作用通过荧光猝灭检测。该测定法应用于泛素E3连接酶底物受体cereblon(CRBN)和von Hippel-Lindau(VHL),包括AT1、MZ1、dBETs和ARV-825在内的多种PROTACs,以及BRD2、BRD3、BRD4和BRDT蛋白的两个溴结构域作为靶点。自动化工作流程可在单次运行中使用皮摩尔样品量测量384个实时传感器图。对邻近介导的绑定动力学的见解有望促进具有改进特性的PROTACs和分子胶的开发,用于靶向蛋白降解。
Keyword:
Assays
Degradation
Kinetic parameters
Kinetics
Sensors
targeted protein degradation
PROTAC
molecular glue
ternary complex
kinetics
affinity
avidity
Y-structure
switchSENSE
CRBN
VHL
BRD
BET

期刊

ACS Sensors 封面图
ACS Sensors
IF:
9.1
论文数:
1.1K
被引数:
2.6W

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dynamic biosensors gmbh
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6
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university of dundee
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astrazeneca
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3.2K
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kurt-schwabe-institute for sensor technologies
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