Abstract
Protein-protein interactions have become attractive drug targets and recent studies suggest that these interfaces may be amenable to inhibition by small molecules. However, blocking specific interactions may not be the only way of manipulating the extensive network of interacting proteins. Recently, several approaches have emerged for promoting these interactions rather than inhibiting them. Typically, these strategies employ a bifunctional ligand to simultaneously bind two targets, forcing their juxtaposition. Chemically “riveting” specific protein contacts can reveal important aspects of regulation, such as the consequences of stable dimerization or the effects of prolonged dwell time. Moreover, in some cases, entirely new functions arise when two proteins, which normally do not interact, are brought into close proximity with one another. Together with inhibitors, bifunctional molecules are part of a growing toolbox of chemical probes that can be used to reversibly and selectively control the interact-ome. Using these reagents, new insights into the dynamics of protein-protein interactions and their importance in biology are beginning to emerge. Future hurdles in this area lie in the development of robust synthetic platforms for rapidly generating compounds to meet the challenges of diverse proteinprotein interfaces.
Keywords: Bifunctional molecule, dimerization, rapamycin, FK506, multivalency
Combinatorial Chemistry & High Throughput Screening
Title: Chemical Control Over Protein-Protein Interactions: Beyond Inhibitors
Volume: 10 Issue: 8
Author(s): Jason E. Gestwicki and Paul S. Marinec
Affiliation:
Keywords: Bifunctional molecule, dimerization, rapamycin, FK506, multivalency
Abstract: Protein-protein interactions have become attractive drug targets and recent studies suggest that these interfaces may be amenable to inhibition by small molecules. However, blocking specific interactions may not be the only way of manipulating the extensive network of interacting proteins. Recently, several approaches have emerged for promoting these interactions rather than inhibiting them. Typically, these strategies employ a bifunctional ligand to simultaneously bind two targets, forcing their juxtaposition. Chemically “riveting” specific protein contacts can reveal important aspects of regulation, such as the consequences of stable dimerization or the effects of prolonged dwell time. Moreover, in some cases, entirely new functions arise when two proteins, which normally do not interact, are brought into close proximity with one another. Together with inhibitors, bifunctional molecules are part of a growing toolbox of chemical probes that can be used to reversibly and selectively control the interact-ome. Using these reagents, new insights into the dynamics of protein-protein interactions and their importance in biology are beginning to emerge. Future hurdles in this area lie in the development of robust synthetic platforms for rapidly generating compounds to meet the challenges of diverse proteinprotein interfaces.
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Cite this article as:
Gestwicki E. Jason and Marinec S. Paul, Chemical Control Over Protein-Protein Interactions: Beyond Inhibitors, Combinatorial Chemistry & High Throughput Screening 2007; 10 (8) . https://dx.doi.org/10.2174/138620707782507296
DOI https://dx.doi.org/10.2174/138620707782507296 |
Print ISSN 1386-2073 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-5402 |
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