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Bacterial Peptide Display for the Selection of Novel Biotinylating Enzymes
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Chapters
- 00:04Title
- 00:29Insertion of Peptide Coding Sequencing Sequence in pBAD BirA-eCPX-AP
- 01:32Generation of a BirA Library
- 03:16Selection of Bacteria Expressing Biotinylated Peptide
- 07:18Quantification of Enrichment
- 08:26Results: Model Selection with pBAD-BirA-eCPX-AP and pBAD-BirA-eCPX-AP(K10A)
- 10:00Conclusion
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.
