Abstract
Fluorescence polarization (FP) has become a powerful technique to quantitatively analyze the binding of a small soluble fluorescence-labeled probe to a larger soluble protein and its displacement by other molecules. Here, we describe a detailed protocol to identify small molecules capable of targeting p53-MDM2/MDMX interactions using a fluorescence polarization assay with Rhodamine-labeled p53 peptides.
MeSH terms
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Cell Cycle Proteins
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Fluorescence Polarization / methods*
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Gene Expression
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Humans
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Nuclear Proteins / chemistry*
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Nuclear Proteins / genetics
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Protein Binding
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Proto-Oncogene Proteins / chemistry*
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Proto-Oncogene Proteins / genetics
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Proto-Oncogene Proteins c-mdm2 / chemistry*
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Proto-Oncogene Proteins c-mdm2 / genetics
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Reproducibility of Results
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Tumor Suppressor Protein p53 / chemistry*
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Tumor Suppressor Protein p53 / genetics
Substances
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Cell Cycle Proteins
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MDM4 protein, human
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Nuclear Proteins
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Proto-Oncogene Proteins
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Tumor Suppressor Protein p53
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MDM2 protein, human
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Proto-Oncogene Proteins c-mdm2