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Eukaryotic Transcription Inhibitors

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Certain biochemical processes, such as embryonic development and cell growth regulation, depend on the repression of specific genes. DNA binding proteins known as eukaryotic transcription inhibitors regulate the repression of gene expression in eukaryotes. The presence of these inhibitors at the required location and time in the cell is triggered by the presence of hormones and additional signals from other cells.
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Related Experiment Video

Updated: Feb 14, 2026

Conducting Multiple Imaging Modes with One Fluorescence Microscope

Conducting Multiple Imaging Modes with One Fluorescence Microscope

Published on: October 28, 2018

Inhibitor Bound Dengue NS2B-NS3pro Reveals Multiple Dynamic Binding Modes.

Alan C Gibbs¹, Ruth Steele¹, Gaohua Liu²

¹Janssen Research and Development LLC , Welsh & McKean Roads , Spring House , Pennsylvania 19477 , United States.

|February 16, 2018

Summary

This summary is machine-generated.

Researchers discovered dengue virus NS2B-NS3pro inhibitors exhibit unexpected multibinding modes. Understanding these dynamics is crucial for developing effective dengue antiviral therapies and drugs.

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Last Updated: Feb 14, 2026

Conducting Multiple Imaging Modes with One Fluorescence Microscope

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Published on: October 28, 2018

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Published on: July 9, 2011

Area of Science:

Virology
Biochemistry
Drug Discovery

Background:

Dengue virus causes severe febrile illnesses, with no specific antiviral treatments available.
Viral RNA is translated into a polyprotein cleaved by the NS2B-NS3pro protease, a key drug target.
Substrate-based trifluoromethyl ketone peptides are a promising class of NS2B-NS3pro inhibitors.

Purpose of the Study:

To investigate the binding interactions of trifluoromethyl ketone peptide inhibitors with dengue NS2B-NS3pro.
To elucidate the molecular mechanisms underlying protease-inhibitor interactions for rational drug design.

Main Methods:

Utilized protein- and ligand-detected solution-state 19F and 1H NMR spectroscopy.
Analyzed the interactions between dengue NS2B-NS3pro and a representative trifluoromethyl ketone inhibitor.

Main Results:

Revealed an unanticipated multibinding mode of the inhibitor to the dengue NS2B-NS3pro.
Demonstrated the dynamic nature of both the covalently bound inhibitor and the protease structure.

Conclusions:

The dynamic nature of inhibitor-protease interactions must be considered for effective drug design.
Further research into these dynamics can guide the development of novel dengue antiviral therapies.