7F0M image
Entry Detail
PDB ID:
7F0M
Keywords:
Title:
Crystal Structure of human Pin1 complexed with a potent covalent inhibitor
Biological Source:
Source Organism:
Host Organism:
PDB Version:
Deposition Date:
2021-06-05
Release Date:
2022-02-16
Method Details:
Experimental Method:
Resolution:
1.90 Å
R-Value Free:
0.24
R-Value Work:
0.21
R-Value Observed:
0.21
Space Group:
P 1 21 1
Macromolecular Entities
Polymer Type:polypeptide(L)
Description:Peptidyl-prolyl cis-trans isomerase NIMA-interacting 1
Mutations:R14A
Chain IDs:A, B, C, D
Chain Length:183
Number of Molecules:4
Biological Source:Homo sapiens
Primary Citation
Computational and Structure-Based Development of High Potent Cell-Active Covalent Inhibitor Targeting the Peptidyl-Prolyl Isomerase NIMA-Interacting-1 (Pin1).
J.Med.Chem. 65 2174 2190 (2022)
PMID: 35089030 DOI: 10.1021/acs.jmedchem.1c01686

Abstact

The unique proline isomerase peptidyl-prolyl isomerase NIMA-interacting-1 (Pin1) is reported to activate numerous cancer-driving pathways simultaneously, and aberrant Pin1 activation is present in many human cancers. Here, we identified a novel hit compound, ZL-Pin01, that covalently modified Pin1 at Cys113 with an half-maximal inhibitory concentration (IC50) of 1.33 ± 0.07 μM through screening an in-house library. Crystallographic study drove the process of structure-guided optimization and led to the potent inhibitor ZL-Pin13 with an IC50 of 0.067 ± 0.03 μM. We obtained four co-crystal structures of Pin1 complexed with inhibitors that elucidated the detailed binding mode of the derivatives with Pin1. Interestingly, the co-crystal of Pin1 with ZL-Pin13 obtained by co-crystallization revealed the conformational change of Gln129 induced by the inhibitor. Furthermore, ZL-Pin13 effectively inhibited the proliferation and downregulated the Pin1 substrates in MDA-MB-231 cells. Collectively, we developed a potent covalent inhibitor of Pin1, ZL-Pin13, which could be an effective probe for studying the functional roles of Pin1.

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