Encapsulation state of messenger RNA inside lipid nanoparticles.

Encapsulation state of messenger RNA inside lipid nanoparticles.
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DOI:
10.1016/j.bpj.2021.03.012
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发表时间:
2021-07-20
影响因子:
3.4
通讯作者:
Jin L
Jin L
中科院分区:
生物学3区
文献类型:
--
作者:
Brader ML;Williams SJ;Banks JM;Hui WH;Zhou ZH;Jin L

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Understanding the structure of messenger RNA (mRNA) lipid nanoparticles, and specifically the microenvironment of the mRNA molecules within these entities, is fundamental to advancing their biomedical potential. Here, we show that a permeating cationic dye, thionine, can serve as a cryogenic electron microscopy contrasting agent by binding selectively to encapsulated mRNA without disturbing lipid nanoparticle morphology. Cryo-electron microscopy images identify the mRNA location, revealing that mRNA may exist within solvent-filled cavities or may be substantially lipid associated.
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