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. 1992 May 15;89(10):4457–4461. doi: 10.1073/pnas.89.10.4457

Semisynthetic combinatorial antibody libraries: a chemical solution to the diversity problem.

C F Barbas 3rd 1, J D Bain 1, D M Hoekstra 1, R A Lerner 1
PMCID: PMC49101  PMID: 1584777

Abstract

The properties of naiveté and large diversity are considered to be essential starting features for combinatorial antibody libraries that eschew immunization by evolution in vitro. We have prepared large libraries with such properties by using random oligonucleotide synthesis, which has the potential to create approximately 10(20) complementarity-determining regions for antibody heavy chains. When combined with light chains and expressed on phage surfaces, high-affinity antibodies could be selected from 5.0 x 10(7) Escherichia coli transformants. Remarkably, antibodies selected only for binding displayed both general structural features known to be important in nature's own antibodies and specific consensus sequences thought to be critical for interaction with the hapten against which the library was selected. Semisynthetic and ultimately totally synthetic combinatorial libraries when coupled with mutation and selection procedures should replace immunization for generation of reagent, therapeutic, and catalytic antibodies.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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