期刊
NATURE METHODS
卷 16, 期 5, 页码 421-+出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/s41592-019-0389-8
关键词
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资金
- Commission for Technology and Innovation CTI [16003.1 PFLS-LS]
- SNSF Professorship of the Swiss National Science Foundation [PP00P3_144823]
- SNSF BRIDGE proof-of-concept grant [20B1-1_175192]
- BioEntrepreneur-Fellowship of the University of Zurich [BIOEF-17-002]
- Swiss National Science Foundation (SNF) [20B1-1_175192] Funding Source: Swiss National Science Foundation (SNF)
Binding protein generation typically relies on laborious screening cascades that process candidate molecules individually. We have developed NestLink, a binder selection and identification technology able to biophysically characterize thousands of library members at once without the need to handle individual clones at any stage of the process. NestLink uses genetically encoded barcoding peptides termed flycodes, which were designed for maximal detectability by mass spectrometry and support accurate deep sequencing. We demonstrate NestLink's capacity to overcome the current limitations of binder-generation methods in three applications. First, we show that hundreds of binder candidates can be simultaneously ranked according to kinetic parameters. Next, we demonstrate deep mining of a nanobody immune repertoire for membrane protein binders, carried out entirely in solution without target immobilization. Finally, we identify rare binders against an integral membrane protein directly in the cellular environment of a human pathogen. NestLink opens avenues for the selection of tailored binder characteristics directly in tissues or in living organisms.
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