6WL6 image
Entry Detail
PDB ID:
6WL6
Title:
Cocomplex structure of Deoxyhypusine synthase with inhibitor 6-[(2R)-1-AMINO-4-METHYLPENTAN-2-YL]-3-(PYRIDIN-3-YL)-4H,5H,6H,7H-THIENO[2,3-C]PYRIDIN-7-ONE
Biological Source:
Source Organism:
Host Organism:
PDB Version:
Deposition Date:
2020-04-18
Release Date:
2020-08-19
Method Details:
Experimental Method:
Resolution:
2.12 Å
R-Value Free:
0.19
R-Value Work:
0.17
R-Value Observed:
0.17
Space Group:
P 32 2 1
Macromolecular Entities
Polymer Type:polypeptide(L)
Description:Deoxyhypusine synthase
Chain IDs:A, B
Chain Length:372
Number of Molecules:2
Biological Source:Homo sapiens
Ligand Molecules
Primary Citation
New Series of Potent Allosteric Inhibitors of Deoxyhypusine Synthase.
Acs Med.Chem.Lett. 11 1645 1652 (2020)
PMID: 34345355 DOI: 10.1021/acsmedchemlett.0c00331

Abstact

Deoxyhypusine synthase (DHPS) is the primary enzyme responsible for the hypusine modification and, thereby, activation of the eukaryotic translation initiation factor 5A (eIF5A), which is key in regulating the protein translation processes associated with tumor proliferation. Although DHPS inhibitors could be a promising therapeutic option for treating cancer, only a few studies reported druglike compounds with this inhibition property. Thus, in this work, we designed and synthesized a new chemical series possessing fused ring scaffolds designed from high-throughput screening hit compounds, discovering a 5,6-dihydrothieno[2,3-c]pyridine derivative (26d) with potent inhibitory activity; furthermore, the X-ray crystallographic analysis of the DHPS complex with 26d demonstrated a distinct allosteric binding mode compared to a previously reported inhibitor. These findings could be significantly useful in the functional analysis of conformational changes in DHPS as well as the structure-based design of allosteric inhibitors.

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Primary Citation of related structures