Multi-subunit proteins on the surface of filamentous phage: methodologies for displaying antibody (Fab) heavy and light chains

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ID: 298649
1991
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Abstract
The display of proteins on the surface of phage offers a powerful means of selecting for rare genes encoding proteins with binding activities. Recently we found that antibody heavy and light chain variable (V) domains fused as a single polypeptide chain to a minor coat protein of filamentous phage fd, could be enriched by successive rounds of phage growth and panning with antigen. This allows the selection of antigen-binding domains directly from diverse libraries of V-genes. Now we show that heterodimeric Fab fragments can be assembled on the surface of the phage by linking one chain to the phage coat protein, and secreting the other into the bacterial periplasm. Furthermore by introducing an amber mutation between the antibody chain and the coat protein, we can either display the antibody on phage using supE strains of bacteria, or produce soluble Fab fragment using non-suppressor strains. The use of Fab fragments may offer advantages over single chain Fv fragments for construction of combinatorial libraries.
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Authors Hennie R. Hoogenboom, Andrew D. Griffiths, Kevin S. Johnson, David J. Chiswell, Peter J. Hudson, Greg Winter
Journal Nucleic Acids Research
Year 1991
DOI
10.1093/nar/19.15.4133
URL
https://academic.oup.com/nar/article-pdf/19/15/4133/3888897/19-15-4133.pdf
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