Abstract
In recent years, there have been a growing number of examples of the successful isolation of peptide ligands for enzymes from phage-displayed combinatorial peptide libraries. These peptides typically bind at or near the active site of the enzymes and can inhibit their activity. We review the literature on peptide ligands that have been isolated for enzymes other than proteases as well as present data on peptide ligands we have identified for E. coli dihydrofolate reductase (DHFR) which bind at, or near, the same site as the known inhibitors methotrexate or trimethoprim. Thus, while the peptide ligand isolated from phage-displayed libraries may not resemble the chemical structure of the normal substrate of the enzyme, the peptide can be used as an inhibitor to evaluate the function of the enzyme or for drug discovery efforts (i.e., as a lead compound for peptidomimetic design or as displaceable probe in high-throughput screens of libraries of small molecules).
Combinatorial Chemistry & High Throughput Screening
Title: Identification of Enzyme Inhibitors from Phage-Displayed Combinatorial Peptide Libraries
Volume: 4 Issue: 7
Author(s): Brian K. Kay and Paul T. Hamilton
Affiliation:
Abstract: In recent years, there have been a growing number of examples of the successful isolation of peptide ligands for enzymes from phage-displayed combinatorial peptide libraries. These peptides typically bind at or near the active site of the enzymes and can inhibit their activity. We review the literature on peptide ligands that have been isolated for enzymes other than proteases as well as present data on peptide ligands we have identified for E. coli dihydrofolate reductase (DHFR) which bind at, or near, the same site as the known inhibitors methotrexate or trimethoprim. Thus, while the peptide ligand isolated from phage-displayed libraries may not resemble the chemical structure of the normal substrate of the enzyme, the peptide can be used as an inhibitor to evaluate the function of the enzyme or for drug discovery efforts (i.e., as a lead compound for peptidomimetic design or as displaceable probe in high-throughput screens of libraries of small molecules).
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Cite this article as:
Kay K. Brian and Hamilton T. Paul, Identification of Enzyme Inhibitors from Phage-Displayed Combinatorial Peptide Libraries, Combinatorial Chemistry & High Throughput Screening 2001; 4 (7) . https://dx.doi.org/10.2174/1386207013330760
DOI https://dx.doi.org/10.2174/1386207013330760 |
Print ISSN 1386-2073 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-5402 |
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