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NMR-Based Activity Assays for Determining Compound Inhibition, IC50 Values, Artifactual Activity, and Whole-Cell Activity of Nucleoside Ribohydrolases
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JoVE Journal Chimica
NMR-Based Activity Assays for Determining Compound Inhibition, IC50 Values, Artifactual Activity, and Whole-Cell Activity of Nucleoside Ribohydrolases

NMR-Based Activity Assays for Determining Compound Inhibition, IC50 Values, Artifactual Activity, and Whole-Cell Activity of Nucleoside Ribohydrolases

DOI:
10.3791/59928-v

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10:24 min

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June 30, 2019

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, , , , , , , , , , ,
1Department of Chemistry,Adelphi University, 2Department of Chemistry,Washington University in St. Louis, 3Department of Chemistry,Boston University

Capitoli

  • 00:04Titolo
  • 00:59Initial Test Compound Assay
  • 05:01Detergent Counter Screen Assay
  • 06:19Jump-Dilution Counter Screen Assays
  • 07:56Results: Representative Nuclear Magnetic Resonance (NMR)-Based Assay Results
  • 09:28Conclusion

Summary

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NMR-based activity assays have been developed to identify and characterize inhibitors of two nucleoside ribohydrolase enzymes. Protocols are provided for initial compound assays at 500 μM and 250 μM, dose-response assays for determining IC50 values, detergent counter screen assays, jump-dilution counter screen assays, and assays in E. coli whole cells.

Tags

NMR-based Activity AssaysEnzyme InhibitionIC50 ValuesArtifact DetectionWhole-cell ActivityNucleoside RibohydrolasesFragment ScreeningTrichomonas VaginalisAnti-trichomonal DrugsReagent VolumesReaction ComponentsSubstrate PreparationTest Compound PreparationReaction Stock SolutionReaction InitiationReaction Quenching

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