4MY6 image
Deposition Date 2013-09-27
Release Date 2014-10-15
Last Version Date 2023-09-20
Entry Detail
PDB ID:
4MY6
Title:
EnaH-EVH1 in complex with peptidomimetic low-molecular weight inhibitor Ac-[2-Cl-F]-[ProM-2]-[ProM-1]-OH
Biological Source:
Source Organism:
Homo sapiens (Taxon ID: 9606)
Host Organism:
Method Details:
Experimental Method:
Resolution:
1.70 Å
R-Value Free:
0.23
R-Value Work:
0.18
Space Group:
C 2 2 2
Macromolecular Entities
Polymer Type:polypeptide(L)
Molecule:Protein enabled homolog
Gene (Uniprot):ENAH
Chain IDs:A, B
Chain Length:113
Number of Molecules:2
Biological Source:Homo sapiens
Peptide-like Molecules
PRD_001198
Primary Citation
A modular toolkit to inhibit proline-rich motif-mediated protein-protein interactions.
Proc.Natl.Acad.Sci.USA 112 5011 5016 (2015)
PMID: 25848013 DOI: 10.1073/pnas.1422054112

Abstact

Small-molecule competitors of protein-protein interactions are urgently needed for functional analysis of large-scale genomics and proteomics data. Particularly abundant, yet so far undruggable, targets include domains specialized in recognizing proline-rich segments, including Src-homology 3 (SH3), WW, GYF, and Drosophila enabled (Ena)/vasodilator-stimulated phosphoprotein (VASP) homology 1 (EVH1) domains. Here, we present a modular strategy to obtain an extendable toolkit of chemical fragments (ProMs) designed to replace pairs of conserved prolines in recognition motifs. As proof-of-principle, we developed a small, selective, peptidomimetic inhibitor of Ena/VASP EVH1 domain interactions. Highly invasive MDA MB 231 breast-cancer cells treated with this ligand showed displacement of VASP from focal adhesions, as well as from the front of lamellipodia, and strongly reduced cell invasion. General applicability of our strategy is illustrated by the design of an ErbB4-derived ligand containing two ProM-1 fragments, targeting the yes-associated protein 1 (YAP1)-WW domain with a fivefold higher affinity.

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