A general protocol for the generation of Nanobodies for structural biology.
A general protocol for the generation of Nanobodies for structural biology.
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DOI:
10.1038/nprot.2014.039
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发表时间:
2014-03
期刊:
影响因子:
14.8
通讯作者:
中科院分区:
文献类型:
--
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There is growing interest in using antibodies as auxiliary proteins to crystallize proteins. Here, we describe a general protocol for the generation of Nanobodies to be used as crystallization chaperones for the structural investigation of diverse conformational states of flexible (membrane) proteins and complexes thereof. Our technology has the competitive advantage over other recombinant crystallization chaperones in that we fully exploit the natural humoral response against native antigens. Accordingly, we provide detailed protocols for the immunization with native proteins and for the selection by phage display of in vivo matured Nanobodies that bind conformational epitopes of functional proteins. Three representative examples illustrate that the outlined procedures are robust, enabling to solve the structures of the most challenging proteins by Nanobody-assisted X-ray crystallography in a time span of 6 to 12 months.
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