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. 1993 Jan 15;90(2):373–377. doi: 10.1073/pnas.90.2.373

catELISA: a facile general route to catalytic antibodies.

D S Tawfik 1, B S Green 1, R Chap 1, M Sela 1, Z Eshhar 1
PMCID: PMC45664  PMID: 7678455

Abstract

The low abundance and activity of catalytic antibodies are major obstacles to their selection from the virtually unlimited repertoire of antibody binding sites. The requirement for new screening methodologies is further emphasized by the availability of combinatorial libraries, in which a functional polypeptide has to be selected out of millions of possibilities. We present a simple and sensitive screening approach (termed catELISA) based on immobilized substrates and immunodetection of the end product of the catalyzed reaction. The feasibility of catELISA is demonstrated here by the generation of potent ester-hydrolyzing antibodies by direct screening of hybridoma supernatants. We show that this approach is not only facile but general: it is not limited by type of reaction, substrate, or catalyst (enzymes, catalytic antibodies, chemical catalysts). catELISA opens a route to catalytic antibodies that replaces existing lengthy and arduous methods, thus allowing us to expand their number and improve their quality and to address questions that would otherwise be difficult to answer.

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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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