REAL-Select: full-length antibody display and library screening by surface capture on yeast cells.

We describe a novel approach named REAL-Select for the non-covalent display of IgG-molecules on the surface of yeast cells for the purpose of antibody engineering and selection. It relies on the capture of secreted native full-length antibodies on the cell surface via binding to an externally immobi...

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Main Authors: Laura Rhiel, Simon Krah, Ralf Günther, Stefan Becker, Harald Kolmar, Björn Hock
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2014-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC4264850?pdf=render
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author Laura Rhiel
Simon Krah
Ralf Günther
Stefan Becker
Harald Kolmar
Björn Hock
author_facet Laura Rhiel
Simon Krah
Ralf Günther
Stefan Becker
Harald Kolmar
Björn Hock
author_sort Laura Rhiel
collection DOAJ
description We describe a novel approach named REAL-Select for the non-covalent display of IgG-molecules on the surface of yeast cells for the purpose of antibody engineering and selection. It relies on the capture of secreted native full-length antibodies on the cell surface via binding to an externally immobilized ZZ domain, which tightly binds antibody Fc. It is beneficial for high-throughput screening of yeast-displayed IgG-libraries during antibody discovery and development. In a model experiment, antibody-displaying yeast cells were isolated from a 1:1,000,000 mixture with control cells confirming the maintenance of genotype-phenotype linkage. Antibodies with improved binding characteristics were obtained by affinity maturation using REAL-Select, demonstrating the ability of this system to display antibodies in their native form and to detect subtle changes in affinity by flow cytometry. The biotinylation of the cell surface followed by functionalization with a streptavidin-ZZ fusion protein is an approach that is independent of the genetic background of the antibody-producing host and therefore can be expected to be compatible with other eukaryotic expression hosts such as P. pastoris or mammalian cells.
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spelling doaj.art-389150e3d90a4193821785b3994a8b802022-12-22T00:53:42ZengPublic Library of Science (PLoS)PLoS ONE1932-62032014-01-01912e11488710.1371/journal.pone.0114887REAL-Select: full-length antibody display and library screening by surface capture on yeast cells.Laura RhielSimon KrahRalf GüntherStefan BeckerHarald KolmarBjörn HockWe describe a novel approach named REAL-Select for the non-covalent display of IgG-molecules on the surface of yeast cells for the purpose of antibody engineering and selection. It relies on the capture of secreted native full-length antibodies on the cell surface via binding to an externally immobilized ZZ domain, which tightly binds antibody Fc. It is beneficial for high-throughput screening of yeast-displayed IgG-libraries during antibody discovery and development. In a model experiment, antibody-displaying yeast cells were isolated from a 1:1,000,000 mixture with control cells confirming the maintenance of genotype-phenotype linkage. Antibodies with improved binding characteristics were obtained by affinity maturation using REAL-Select, demonstrating the ability of this system to display antibodies in their native form and to detect subtle changes in affinity by flow cytometry. The biotinylation of the cell surface followed by functionalization with a streptavidin-ZZ fusion protein is an approach that is independent of the genetic background of the antibody-producing host and therefore can be expected to be compatible with other eukaryotic expression hosts such as P. pastoris or mammalian cells.http://europepmc.org/articles/PMC4264850?pdf=render
spellingShingle Laura Rhiel
Simon Krah
Ralf Günther
Stefan Becker
Harald Kolmar
Björn Hock
REAL-Select: full-length antibody display and library screening by surface capture on yeast cells.
PLoS ONE
title REAL-Select: full-length antibody display and library screening by surface capture on yeast cells.
title_full REAL-Select: full-length antibody display and library screening by surface capture on yeast cells.
title_fullStr REAL-Select: full-length antibody display and library screening by surface capture on yeast cells.
title_full_unstemmed REAL-Select: full-length antibody display and library screening by surface capture on yeast cells.
title_short REAL-Select: full-length antibody display and library screening by surface capture on yeast cells.
title_sort real select full length antibody display and library screening by surface capture on yeast cells
url http://europepmc.org/articles/PMC4264850?pdf=render
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