Orthogonal labeling of M13 minor capsid proteins with DNA to self-assemble end-to-end multiphage structures.

Orthogonal labeling of M13 minor capsid proteins with DNA to self-assemble end-to-end multiphage structures.
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DOI:
10.1021/sb400019s
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发表时间:
2013-09-20
影响因子:
4.7
通讯作者:
Belcher, Angela M.
Belcher, Angela M.
中科院分区:
生物学2区
文献类型:
--
作者:
Hess, Gaelen T.;Guimaraes, Carla P.;Spooner, Eric;Ploegh, Hidde L.;Belcher, Angela M.

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M13噬菌体已被用作支架来组织用于各种应用的材料。构建更复杂的多噬菌体装置需要精确控制M13衣壳蛋白之间的相互作用。为此,我们将环结构设计到M13噬菌体的pIII衣壳蛋白上,以使分选酶介导的标记反应能够用于C-末端展示。将其与N-末端分选酶介导的标记相结合,我们因此创建了可以在三个衣壳蛋白上正交标记的噬菌体支架:主体和两端。我们表明,共价连接的不同的DNA寡核苷酸在新的噬菌体结构的末端,使多噬菌体颗粒的形成以特定的顺序取向。这些具有作为多材料装置的纳米级支架的潜力。
M13 bacteriophage has been used as a scaffold to organize materials for various applications. Building more complex multi-phage devices requires precise control of interactions between the M13 capsid proteins. Towards this end, we engineered a loop structure onto the pIII capsid protein of M13 bacteriophage to enable sortase-mediated labeling reactions for C-terminal display. Combining this with N-terminal sortase-mediated labeling, we thus created a phage scaffold that can be labeled orthogonally on three capsid proteins: the body and both ends. We show that covalent attachment of different DNA oligonucleotides at the ends of the new phage structure enables formation of multi-phage particles oriented in a specific order. These have potential as nanoscale scaffolds for multi–material devices.
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