Protein Delivery: If Your GFP (or Other Small Protein) Is in the Cytosol, It Will Also Be in the Nucleus.

Protein Delivery: If Your GFP (or Other Small Protein) Is in the Cytosol, It Will Also Be in the Nucleus.
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DOI:
10.1021/acs.bioconjchem.1c00103
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发表时间:
2021-05-19
影响因子:
4.7
通讯作者:
Rotello VM
Rotello VM
中科院分区:
化学2区
文献类型:
--
作者:
Luther DC;Jeon T;Goswami R;Nagaraj H;Kim D;Lee YW;Rotello VM

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Intracellular protein delivery is a transformative tool for biologics research and medicine. Delivery into the cytosol allows proteins to diffuse throughout the cell and access subcellular organelles. Inefficient delivery caused by endosomal entrapment is often misidentified as cytosolic delivery. This inaccuracy muddles what should be a key checkpoint in assessing delivery efficiency. Green fluorescent protein (GFP) is a robust cargo small enough to passively diffuse from the cytosol into the nucleus. Fluorescence of GFP in the nucleus is a direct readout for cytosolic access and effective delivery. Here we highlight recent examples from literature for the accurate assessment of cytosolic protein delivery using GFP fluorescence in the cytosol and nucleus.
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