J 2015

Discovery of a novel ligand that modulates the protein-protein interactions of the AAA plus superfamily oncoprotein reptin

HEALY, AR, DR HOUSTON, L REMNANT, AS HUART, Veronika BRYCHTOVÁ et. al.

Základní údaje

Originální název

Discovery of a novel ligand that modulates the protein-protein interactions of the AAA plus superfamily oncoprotein reptin

Autoři

HEALY, AR, DR HOUSTON, L REMNANT, AS HUART, Veronika BRYCHTOVÁ, MM MASLON, O MEERS, Petr MÜLLER, Adam KREJČÍ, EA BLACKBURN, Bořivoj VOJTĚŠEK, L HERNYCHOVA, MD WALKINSHAW, NJ WESTWOOD a TR HUPP

Vydání

CHEMICAL SCIENCE, CAMBRIDGE, ROYAL SOC CHEMISTRY, 2015, 2041-6520

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Impakt faktor

Impact factor: 9.144

UT WoS

000353223100055
Změněno: 10. 6. 2015 15:56, Mgr. Adam Krejčí, Ph.D.

Anotace

V originále

Developing approaches to discover protein-protein interactions (PPIs) remains a fundamental challenge. A chemical biology platform is applied here to identify novel PPIs for the AAA+ superfamily oncoprotein reptin. An in silico screen coupled with chemical optimization provided Liddean, a nucleotide-mimetic which modulates reptin's oligomerization status, protein-binding activity and global conformation. Combinatorial peptide phage library screening of Liddean-bound reptin with next generation sequencing identified interaction motifs including a novel reptin docking site on the p53 tumor suppressor protein. Proximity ligation assays demonstrated that endogenous reptin forms a predominantly cytoplasmic complex with its paralog pontin in cancer cells and Liddean promotes a shift of this complex to the nucleus. An emerging view of PPIs in higher eukaryotes is that they occur through a striking diversity of linear peptide motifs. The discovery of a compound that alters reptin's protein interaction landscape potentially leads to novel avenues for therapeutic development.