Abstract
Yeast display is an efficient technology for selection of antibodies and other proteins with high affinity and thermal stability. Here, we describe a method for affinity maturation of engineered antibody domains (eAds) using yeast display. EAd yeast libraries of relatively large size (∼109) were generated and subjected to alternating rounds of magnetic-activated cell sorting (MACS), fluorescent-activated cell sorting (FACS), and random mutagenesis. The highest affinity clones from the final round of maturation were identified and analyzed. We discuss extensively each key step, and provide detailed protocols and helpful notes.
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Acknowledgments
We thank Professor Dane Wittrup for providing the yeast display vector pCTCON2 and yeast strain EBY100 and members of our group for helpful discussions. This project was supported by the Intramural Research Program of the NIH, National Cancer Institute, Center for Cancer Research and by the Gates Foundation (DSD).
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Zhao, Q., Zhu, Z., Dimitrov, D.S. (2012). Yeast Display of Engineered Antibody Domains. In: Voynov, V., Caravella, J. (eds) Therapeutic Proteins. Methods in Molecular Biology, vol 899. Humana Press, Totowa, NJ. https://doi.org/10.1007/978-1-61779-921-1_5
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DOI: https://doi.org/10.1007/978-1-61779-921-1_5
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Publisher Name: Humana Press, Totowa, NJ
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Online ISBN: 978-1-61779-921-1
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