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Microbiol. Rev., Mar 1995, 94-123, Vol 59, No. 1
EM Phizicky and S Fields
The function and activity of a protein are often modulated by other
proteins with which it interacts. This review is intended as a practical
guide to the analysis of such protein-protein interactions. We discuss
biochemical methods such as protein affinity chromatography, affinity
blotting, coimmunoprecipitation, and cross-linking; molecular biological
methods such as protein probing, the two-hybrid system, and phage display:
and genetic methods such as the isolation of extragenic suppressors,
synthetic mutants, and unlinked noncomplementing mutants. We next describe
how binding affinities can be evaluated by techniques including protein
affinity chromatography, sedimentation, gel filtration, fluorescence
methods, solid-phase sampling of equilibrium solutions, and surface plasmon
resonance. Finally, three examples of well-characterized domains involved
in multiple protein-protein interactions are examined. The emphasis of the
discussion is on variations in the approaches, concerns in evaluating the
results, and advantages and disadvantages of the techniques.
Copyright © 1995, American Society for Microbiology
Protein-protein interactions: methods for detection and analysis
Department of Biochemistry, University of Rochester Medical School, New York 14642.
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