Tapping a bacterial enzymatic pathway for the preparation and manipulation of synthetic nanomaterials.

Tapping a bacterial enzymatic pathway for the preparation and manipulation of synthetic nanomaterials.
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DOI:
10.1021/ja509827s
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发表时间:
2014-12-17
影响因子:
15
通讯作者:
Gianneschi NC
Gianneschi NC
中科院分区:
化学1区
文献类型:
--
作者:
Ku TH;Sahu S;Kosa NM;Pham KM;Burkart MD;Gianneschi NC

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We present a spherical micelle generated in a three-step sequence in which a farnesyl-pantetheine conjugate is phosphorylated, adenylated, and phosphorylated once more to generate a farnesyl-CoA amphiphile that self-assembles into spherical micelles. A sphere-to-fibril morphological switch is achieved by enzymatically transferring the farnesyl-group of the farnesyl-CoA micelle onto a peptide via phosphopantetheinyl transferase to generate a peptide amphiphile. Each step in the sequence is followed with characterization by HPLC, mass spectrometry, transmission electron microscopy (TEM) and dynamic light scattering (DLS). This system offers an entry into cofactor-mediated peptide decoration by extending the principles of bioresponsive polymeric materials to sequential enzyme cascades.
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