替代的多氧甲酸盐调节蛋白片段106-126通过氧化策略错误折叠
Bole Li1, Chang Xu1, Yanfei Lv1
1State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China.
ACS applied materials & interfaces
|July 13, 2023
概括
替代的聚氧甲酸盐 (POMs) 有效氧化蛋白 (PrP),抑制它们的聚合. PW10V2表现出最强的效果,降低了子乱中的神经毒性.
科学领域:
- 神经科学是一个神经科学.
- 生物化学 生物化学
- 材料科学 材料科学 材料科学
背景情况:
- 子乱是致命的神经退行性疾病,与错误折叠的子蛋白 (PrPSc) 相关.
- 蛋白的化学氧化可以改变它们的聚合特性.
- PrP106-126作为研究PrPSc聚合的模型.
研究的目的:
- 调查以替代的Keggin型和多氧金属 (POMs) 作为用于蛋白氧化的化学工具.
- 评估POMs对PrP106-126聚合和神经毒性的影响.
主要方法:
- 用替代的W-和Mo-POMs的合成和表征.
- 使用POMs对PrP106-126进行氧化.
- 对PrP聚合抑制和神经毒性减弱的评估.
主要成果:
- 与Mo-POM相比,W-POM表现出更大的结构稳定性,结合亲和力和对PrP的氧化作用.
- 瓦纳替代增强了与PrP的histidine位点的结合.
- PW10V2显示了PrP中氨酸残留物最强的氧化,显著抑制聚合并减少神经毒性.
结论:
- 替代的POM是有效的化学工具,可以调节蛋白的行为.
- PW10V2显示出抑制PrP聚合和减轻与相关的神经毒性的显著潜力.
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