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JoVE Journal
Immunology and Infection

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Bacterial Peptide Display for the Selection of Novel Biotinylating Enzymes
 

Bacterial Peptide Display for the Selection of Novel Biotinylating Enzymes

Article DOI: 10.3791/60266-v 10:43 min October 3rd, 2019
October 3rd, 2019

챕터

요약

Here we present a method to select for novel variants of the E. coli biotin-protein ligase BirA that biotinylates a specific target peptide. The protocol describes the construction of a plasmid for the bacterial display of the target peptide, generation of a BirA library, selection and characterization of BirA variants.

Tags

Keywords: Bacterial Peptide Display Biotinylating Enzymes BirA Streptavidin Selection PCR Megaprimers DpnI T7 Express LysY/Iq Competent E. Coli
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