Using Phage Display to Analyze Human Proteins
Author Information
Author(s): B. P. Mullaney, J. D. Marks, M. G. Pallavicini
Primary Institution: University of California at San Francisco
Hypothesis
Can phage display strategies effectively identify coding exon sequences from human genomic regions?
Conclusion
The study demonstrates that phage display can enrich for specific protein sequences, although it also reveals challenges with bacterial mimotopes.
Supporting Evidence
- Phage display libraries were constructed from a 50 kb human P1 clone.
- Significant enrichment of specific sequences was observed after antibody selection.
- Unexpectedly, many clones contained E. coli genomic sequences.
Takeaway
Scientists used a special method to find important parts of human genes, but they found some confusing pieces from bacteria too.
Methodology
The study constructed phage display libraries from human genomic and cDNA sources, selected for specific antibodies, and analyzed the resulting clones.
Potential Biases
Potential bias due to the prevalence of bacterial sequences that may outcompete true human epitopes.
Limitations
The presence of E. coli sequences in the libraries complicates the identification of true human epitopes.
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website