Characterization by atomic force microscopy and cryoelectron microscopy of tau polymers assembled in Alzheimer's disease.

Characterization by atomic force microscopy and cryoelectron microscopy of tau polymers assembled in Alzheimer's disease.
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通过原子力显微镜和冷冻电子显微镜对阿尔茨海默病中组装的 tau 聚合物进行表征。

DOI:
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发表时间:
2001
期刊:
Journal of Alzheimer's Disease
影响因子:
--
通讯作者:
E. Montejo de Garcíni
E. Montejo de Garcíni
中科院分区:
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文献类型:
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作者:
F. Moreno;J. Valpuesta;Mar Pérez;J. Colchero;Arturo M. Barö;J. Ávila;E. Montejo de Garcíni

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用原子力显微镜和冷冻电子显微镜研究了微管相关蛋白tau的聚合物--成对螺旋丝(PHF)的结构。在AFM分析中使用云母和石墨作为基底,结果没有差异。当对数据进行详细分析时,发现螺旋结构内8-12 nm宽的带型。高AFM分辨率的图像,通过使用超锋利的尖端证实了以前的结果,并建议观察到的结构是兼容的由两个平行股的螺旋带。冷冻电镜实验证实了这些结果。
The structure of the Paired Helical filaments (PHF), a polymer of the microtubule associated protein tau, has been studied by Atomic Force Microscopy (AFM) and by cryoelectron microscopy. Mica and graphite were used as substrates in the AFM analysis with no differences in the results. A banding pattern of 8-12 nm width within the helical structure is found when detailed analysis of the data is performed. High AFM resolution images obtained by using an ultra sharp tip confirm the previous results and suggest that the structures observed are compatible with a helical ribbon made up of two parallel strands. These results were confirmed by cryoelectron microscopy experiments.
使用原子力显微镜观察从阿尔茨海默病患者尸检大脑中分离出的成对螺旋丝,并进行微管相关蛋白 tau 免疫标记。
DOI: --
发表时间: 1995
期刊: The American journal of pathology
影响因子: --
作者:
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通讯作者: Vidic,B
DOI: --
发表时间: 1991
期刊: The Journal of biological chemistry
影响因子: --
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使用冷冻干燥/旋转阴影分析阿尔茨海默病中发现的成对螺旋丝 (PHF)。
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