CD BioGlyco is experienced in Glycan Display for LiGA Construction, LiGA-based research, etc. M13 bacteriophages are used for linkage with glycans in LiGA because of their ease of handling and relatively simple genome. We provide an engineered M13 bacteriophage construction service for LiGA.
To analyze differences in glycan binding patterns, it is necessary to differentiate between M13 bacteriophages carrying glycans. Silent barcodes are a set of DNA fragments with different DNA sequences but encoding chemically identical peptides. We insert silent barcodes into the M13 bacteriophage genome to distinguish between the multiple glycans bound. Silent barcodes can be introduced at sequences excised from bacteriophage proteins or at any conserved position in the bacteriophage vector, including silent regions, translationally active regions, and so on. We primarily place silent barcodes close to variable regions for simultaneous characterization by deep sequencing of short amplicons. M13 bacteriophage libraries with different barcodes are chemically modified and they are combined to form hybrid libraries that are used for glycan analysis.
The construction of an engineered M13 bacteriophage involves the insertion of a silent barcode, chemical modification of the bacteriophage, and functional detection. The engineered M13 bacteriophage constructed through a series of steps is used for LiGA construction.
Fig.1 Process of constructing engineered bacteriophage M13. (CD BioGlyco)
Technology: Genetic engineering technique
Journal: Journal of the American Chemical Society
IF: 13.858
Published: 2016
Results: In this study, a method was designed to insert a silent barcode into the M13 bacteriophage genome to encode each chemical post-translational modification (cPTM). To validate this approach, bacteriophage-displayed peptide libraries were constructed in this study. pan and sequencing of this hybrid library showed that specific cPTMs were significantly enriched during panning against a specific target, with significant results.
Fig.2 Proof of concept for cPTM using silent barcodes. (Tjhung, et al., 2016)
CD BioGlyco is committed to expanding the application of glycan display arrays through a variety of advanced tools and experimental methods. Please feel free to contact us to learn more about the construction of engineered M13 bacteriophage, the related genetic engineering techniques used, and other information. We look forward to providing you with this construction service.
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