DNA-Mediated Cellular Delivery of Functional Enzymes.
DNA-Mediated Cellular Delivery of Functional Enzymes.
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DOI:
10.1021/jacs.5b09711
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发表时间:
2015-12-02
影响因子:
15
通讯作者:
Mirkin CA
中科院分区:
文献类型:
--
作者:
Brodin JD;Sprangers AJ;McMillan JR;Mirkin CA
We report a strategy for creating a new class of protein transfection materials composed of a functional protein core chemically modified with a dense shell of oligonucleotides. These materials retain the native structure and catalytic ability of the hydrolytic enzyme β-galactosidase, which serves as the protein core, despite the functionalization of its surface with ∼25 DNA strands. The covalent attachment of a shell of oligonucleotides to the surface of β-galactosidase enhances its cellular uptake of by up to ∼280-fold and allows for the use of working concentrations as low as 100 pM enzyme. DNA-functionalized β-galactosidase retains its ability to catalyze the hydrolysis of β-glycosidic linkages once endocytosed, whereas equal concentrations of protein show little to no intracellular catalytic activity.
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DOI:
10.1073/pnas.1503533112
发表时间:
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影响因子:
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作者:
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通讯作者:
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