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Micro World

Nucleosome有多小？

Nucleosome直径约 11 nm。

测量内容：DNA wrapped around histone core

Nucleosome（11 nm）与a DNA double helix（2 nm）和a ribosome（25 nm）按真实比例并排绘制
按比例绘制，从左到右依次是：DNA double helix (2 nm)、Nucleosome (11 nm)和Ribosome (25 nm)。

比较

它实际有多大？

  • About 2 would fit across a ribosome
  • As wide as about 5 DNA double helices side by side
  • About 9 would fit across a flu virus

了解更多

关于Nucleosome的资料

A nucleosome packages about 147 base pairs of DNA around eight histone proteins, the basic unit of chromatin.

来源：NCBI Bookshelf: Molecular Biology of the Cell, Chromatin structure

Micro World

名称尺寸与Nucleosome对比
Bacteriorhodopsin Molecule5 nm0.45×
Transfer RNA Molecule8 nm0.73×
Amyloid Beta Fibril10 nm0.91×
Semiconductor Quantum Dot10 nm0.91×
Nucleosome11 nm本页面
Ferritin Molecule12 nm1.1×
Colloidal Gold Nanoparticle20 nm1.8×
Bacteriophage Phi X17427 nm2.5×
Qβ Bacteriophage28 nm2.5×
Silver Nanoparticle40 nm3.6×

测测你的尺度感

哪个更大：Nucleosome还是Transfer RNA Molecule？

主题

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