Rhodopsin Activation in Lipid Membranes Based on Solid-State NMR Spectroscopy

Rhodopsin Activation in Lipid Membranes Based on Solid-State NMR Spectroscopy
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基于固态核磁共振波谱的脂膜视紫红质激活

DOI:
10.1007/978-3-642-35943-9_788-2
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发表时间:
2020
期刊:
Encyclopedia of Biophysics
影响因子:
--
通讯作者:
Brown, M. F.
Brown, M. F.
中科院分区:
--
文献类型:
--
作者:
Perera, S. M..;Xu, X.;Molugu, T. R.;Struts, A. V.;Brown, M. F.

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视紫红质在弱光条件下介导脊椎动物的暗视,是G蛋白偶联受体(GPCR)蛋白的原型,可调节人类的许多重要功能(Stevens et al. 2013; Latorraca et al. 2017; Koehl et al. 2018; Masureel et al. 2018; Perera et al. 2018)。尽管它们是超过30%的已知药物的靶标,但是,大多数GPCR结构目前尚不清楚(Stevens等人,2013)。常规方法受到以下挑战:难以结晶GPCR用于X射线分析(Salom等人,2006; Wu等人,2015; Perera等人,2017),或者在高分辨率NMR光谱的情况下需要溶解去污剂(Nygaard等人,2013)。值得注意的是,视觉视紫红质是已经阐明各种状态下X射线结构的少数GPCR之一(Scheerer et al. 2008; Park et al. 2008; Choe et al. 2011; Standfuss et al. 2011)。还通过傅里叶变换红外(FTIR)方法和固态2 H NMR光谱研究了视紫红质,所述傅里叶变换红外(FTIR)方法检测短程局部相互作用(Mahalingam等人,2008; Zaitseva等人,2010; Struts等人,2015 a),所述固态2 H NMR光谱提供了另外的视紫红质的特征。
Rhodopsin mediates the scotopic vision of vertebrates under low light conditions and is the archetype for the G-protein-coupled receptor (GPCR) proteins that regulate many of the vital functions of humans (Stevens et al. 2013; Latorraca et al. 2017; Koehl et al. 2018; Masureel et al. 2018; Perera et al. 2018). Despite that they are targets of more than 30% of known pharmaceuticals, however, most GPCR structures are currently unknown (Stevens et al. 2013). Conventional approaches are challenged by difficulties in crystallizing GPCRs for X-ray analysis (Salom et al. 2006; Wu et al. 2015; Perera et al. 2017) or the requirement for detergent solubilization in the case of high-resolution NMR spectroscopy (Nygaard et al. 2013). Notably, visual rhodopsin is one of few GPCRs for which X-ray structures in various states have been elucidated (Scheerer et al. 2008; Park et al. 2008; Choe et al. 2011; Standfuss et al. 2011). Rhodopsin has also been studied by Fourier transform infrared (FTIR) methods, which detect short-range local interactions (Mahalingam et al. 2008; Zaitseva et al. 2010; Struts et al. 2015a), and by solid-state 2H NMR spectroscopy, which affords additional
天然膜中视紫红质发色团的 β-紫罗兰酮环和多烯链之间的相对方向。
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