4CKU image
Deposition Date 2014-01-08
Release Date 2014-06-18
Last Version Date 2024-10-23
Entry Detail
PDB ID:
4CKU
Keywords:
Title:
Three dimensional structure of plasmepsin II in complex with hydroxyethylamine-based inhibitor
Biological Source:
Source Organism:
Host Organism:
Method Details:
Experimental Method:
Resolution:
1.85 Å
R-Value Free:
0.20
R-Value Work:
0.15
R-Value Observed:
0.16
Space Group:
C 1 2 1
Macromolecular Entities
Polymer Type:polypeptide(L)
Molecule:PLASMEPSIN-2
Gene (Uniprot):PMII
Chain IDs:A, B, C, D, E, F
Chain Length:329
Number of Molecules:6
Biological Source:PLASMODIUM FALCIPARUM
Ligand Molecules
Primary Citation
Plasmepsin Inhibitory Activity and Structure-Guided Optimization of a Potent Hydroxyethylamine-Based Antimalarial Hit.
Acs Med.Chem.Lett. 5 373 ? (2014)
PMID: 24900843 DOI: 10.1021/ML4004952

Abstact

Antimalarial hit 1 SR (TCMDC-134674) identified in a GlaxoSmithKline cell based screening campaign was evaluated for inhibitory activity against the digestive vacuole plasmepsins (Plm I, II, and IV). It was found to be a potent Plm IV inhibitor with no selectivity over Cathepsin D. A cocrystal structure of 1 SR bound to Plm II was solved, providing structural insight for the design of more potent and selective analogues. Structure-guided optimization led to the identification of structurally simplified analogues 17 and 18 as low nanomolar inhibitors of both, plasmepsin Plm IV activity and P. falciparum growth in erythrocytes.

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Primary Citation of related structures