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Highly selective inhibition of histone demethylases by de novo macrocyclic peptides

by Yapp, Clarence , Passioura, Toby , Suga, Hiroaki , King, Oliver N F , Hopkinson, Richard J , Walport, Louise J , Brennan, Paul E , Schofield, Christopher J , Chowdhury, Rasheduzzaman , Kojima, Tatsuya , Müller, Susanne , Münzel, Martin , Madden, Sarah , Goto, Yuki , Katoh, Takayuki , Hatch, Stephanie B , Kawamura, Akane , Bhushan, Bhaskar , Tumber, Anthony

in Crystallography, X-Ray / Enzyme Inhibitors - pharmacology / Humans / Inhibitory Concentration 50 / Jumonji Domain-Containing Histone Demethylases - antagonists & inhibitors / Jumonji Domain-Containing Histone Demethylases - metabolism / Mass Spectrometry / Peptides, Cyclic - pharmacology / Proteolysis / Structure-Activity Relationship / Substrate Specificity

2017

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Highly selective inhibition of histone demethylases by de novo macrocyclic peptides

2017

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Highly selective inhibition of histone demethylases by de novo macrocyclic peptides

2017

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Journal Article

Highly selective inhibition of histone demethylases by de novo macrocyclic peptides

Yapp, Clarence,

Passioura, Toby,

Suga, Hiroaki,

King, Oliver N F,

Hopkinson, Richard J,

Walport, Louise J,

Brennan, Paul E,

Schofield, Christopher J,

Chowdhury, Rasheduzzaman,

Kojima, Tatsuya,

Müller, Susanne,

Münzel, Martin,

Madden, Sarah,

Goto, Yuki,

Katoh, Takayuki,

Hatch, Stephanie B,

Kawamura, Akane,

Bhushan, Bhaskar,

Tumber, Anthony

2017

Overview

The JmjC histone demethylases (KDMs) are linked to tumour cell proliferation and are current cancer targets; however, very few highly selective inhibitors for these are available. Here we report cyclic peptide inhibitors of the KDM4A-C with selectivity over other KDMs/2OG oxygenases, including closely related KDM4D/E isoforms. Crystal structures and biochemical analyses of one of the inhibitors (CP2) with KDM4A reveals that CP2 binds differently to, but competes with, histone substrates in the active site. Substitution of the active site binding arginine of CP2 to N-ɛ-trimethyl-lysine or methylated arginine results in cyclic peptide substrates, indicating that KDM4s may act on non-histone substrates. Targeted modifications to CP2 based on crystallographic and mass spectrometry analyses results in variants with greater proteolytic robustness. Peptide dosing in cells manifests KDM4A target stabilization. Although further development is required to optimize cellular activity, the results reveal the feasibility of highly selective non-metal chelating, substrate-competitive inhibitors of the JmjC KDMs.

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Publisher

Nature Publishing Group,Nature Portfolio

Subject

Crystallography, X-Ray

/ Enzyme Inhibitors - pharmacology

/ Humans

/ Inhibitory Concentration 50

/ Jumonji Domain-Containing Histone Demethylases - antagonists & inhibitors

/ Jumonji Domain-Containing Histone Demethylases - metabolism

/ Mass Spectrometry