Surface dynamics of the integral membrane protein bacteriorhodopsin

Surface dynamics of the integral membrane protein bacteriorhodopsin
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整合膜蛋白细菌视紫红质的表面动力学

DOI:
--
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发表时间:
1984
期刊:
影响因子:
64.8
通讯作者:
E. Oldfield
E. Oldfield
中科院分区:
综合性期刊1区
文献类型:
--
作者:
M. Keniry;H. S. Gutowsky;E. Oldfield

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最近,人们对确定膜蛋白,特别是细菌视紫红质的三维结构产生了极大的兴趣,已经证实了各种可能的折叠排列1 -4。在本文中,我们提出了氘细菌视紫红质的核磁共振(NMR)谱5 -8,并使用数据来帮助解释各种建议的细菌视紫红质折叠模式。结果表明:(1)膜表面(±1个残基)可以通过NMR在细菌视紫红质中定义;(2)表面内的所有氨基酸基本上是结晶的;(3)表面外的所有氨基酸细菌视紫红质中的(表面残基)在2 H NMR实验的时间尺度上是高度移动的;(4)NMR数据可用于帮助评估已提出的各种结构模型;(5)紫色膜片的聚集可能导致表面残基的固定。
Recently, there has been great interest in determining the three-dimensional structures of membrane proteins, particularly bacteriorhodopsin, for which a variety of possible folding arrangements have been suggested1–4. In this paper we present nuclear magnetic resonance (NMR) spectra5–8 of deuterated bacteriorhodopsin, and use the data to help interpret the various suggested bacteriorhodopsin folding patterns. The results strongly indicate that (1) a membrane surface (±1 residue) may be defined by NMR in bacteriorhodopsin; (2) all amino acids inside the surface are essentially crystalline; (3) all amino acids outside the surface (surface residues) in bacteriorhodopsin are highly mobile on the time scale of the 2H NMR experiments; (4) NMR data may be used to help evaluate the various structural models that have been proposed; (5) aggregation of purple membrane sheets may lead to an immobilization of the surface residues.
DOI: --
发表时间: 1981
期刊: The Journal of biological chemistry
影响因子: --
作者:
Kinsey,RA;Kintanar,A;Oldfield,E
通讯作者: Oldfield,E
DOI: 10.1016/s0021-9258(19)69982-5
发表时间: 1981-02
期刊: The Journal of biological chemistry
影响因子: --
作者:
T. Rothgeb;E. Oldfield
通讯作者: T. Rothgeb;E. Oldfield
使用视网膜的光敏类似物进行交联研究细菌视紫红质中视网膜的方向。
DOI: --
发表时间: 1982
期刊: The Journal of biological chemistry
影响因子: --
作者:
Huang,KS;Radhakrishnan,R;Bayley,H;Khorana,HG
通讯作者: Khorana,HG
DOI: --
发表时间: 1981
期刊: The Journal of biological chemistry
影响因子: --
作者:
Kinsey,RA;Kintanar,A;Tsai,MD;Smith,RL;Janes,N;Oldfield,E
通讯作者: Oldfield,E