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细胞内膜膜蛋白复合体子单元Emc6对于罗多普辛局部化和光受体细胞生存至关重要

Kuanxiang Sun^1,2,3,4, Lu Liu³, Xiaoyan Jiang³

¹Health Management Center, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, Sichuan 610072, China.

Genes & diseases

|September 11, 2023

概括

细胞内膜膜蛋白复合体亚单元EMC6对于光受体健康至关重要. 它的缺陷会损害罗多普辛的贩运和外部细分的发展,影响视力.

科学领域:

分子生物学分子生物学
细胞生物学细胞生物学
神经科学是一个神经科学.

背景情况:

细胞内膜网膜蛋白复合体 (EMC) 调节了膜蛋白生物发生.
电磁共振子单元EMC6至关重要,但其在光受体功能中的作用尚未完全理解.
之前的研究将EMC3删除与棒光受体中的罗多素错位化联系起来.

研究的目的:

为了研究EMC6在杆状和状光感受器中的功能.
阐明EMC6缺乏引起的光受体退化背后的分子机制.

主要方法:

生成的杆光受体特异性 (RKO) 和光受体特异性 (CKO) 淘汰赛小鼠模型用于Emc6.
分析了光受体结构,视觉功能,蛋白质表达和视网膜化.
利用蛋白质组学来识别RKO视网膜中差异表达的蛋白质.

主要成果:

杆子中Emc6缺乏导致外部段缩短,视力受损,Rhodopsin错位化和化.
体中的Emc6缺乏导致光受体死亡和体素错位.
蛋白质组学揭示了RKO小鼠中皮相关蛋白 (ANO2,TMEM67) 的下调.
棒光受体表现出有害的乳毛和错位的膜盘蛋白.

结论:

EMC6对于罗多普辛生物发生和运输在棒光受体中至关重要.
此外,EMC6在杆光受体纤维生成中也起着至关重要的作用.
EMC6的调节失调会影响膜盘蛋白合成和纤毛发育,导致光受体退化.

关键词:

ANO2是二氧化碳的二氧化物.基里亚和西里亚.在EMC6中,EMC6是EMC6.在ER膜蛋白复合体中,ER膜蛋白复合体错位化错位化情况摄影受体退化摄影受体退化这就是为什么TMEM67EM67

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