Polymyxins and Quinazolines Are LSD1/KDM1A Inhibitors with Unusual Structural Features

Overview

Journal Sci Adv

Specialties Biology
Science

Date 2016 Sep 15

PMID 27626075

Citations 21

Authors

Valentina Speranzini

Dante Rotili

Giuseppe Ciossani

Simona Pilotto

Biagina Marrocco

Mariantonietta Forgione

Alessia Lucidi

Federico Forneris

Parinaz Mehdipour

Sameer Velankar

Antonello Mai

Andrea Mattevi

Affiliations

Soon will be listed here.

Abstract

Because of its involvement in the progression of several malignant tumors, the histone lysine-specific demethylase 1 (LSD1) has become a prominent drug target in modern medicinal chemistry research. We report on the discovery of two classes of noncovalent inhibitors displaying unique structural features. The antibiotics polymyxins bind at the entrance of the substrate cleft, where their highly charged cyclic moiety interacts with a cluster of positively charged amino acids. The same site is occupied by quinazoline-based compounds, which were found to inhibit the enzyme through a most peculiar mode because they form a pile of five to seven molecules that obstruct access to the active center. These data significantly indicate unpredictable strategies for the development of epigenetic inhibitors.

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