ISDA

Deposition Date 2003-09-09

Release Date 2004-03-16

Last Version Date 2024-02-14

Entry Detail

PDB ID:

1QXW

Keywords:

HYDROLASE

Title:

Crystal structure of Staphyloccocus aureus in complex with an aminoketone inhibitor 54135.

Biological Source:

Source Organism:

Staphylococcus aureus (Taxon ID: 1280)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.67 Å

R-Value Free:

0.18

R-Value Work:

0.15

R-Value Observed:

0.15

Space Group:

P 1 21 1

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:methionyl aminopeptidase
Chain IDs:A
Chain Length:252
Number of Molecules:1
Biological Source:Staphylococcus aureus

UniProt ID:P0A078 Pfam ID:PF00557

Ligand Molecules

ACT

M1C

Primary Citation

Crystal structures of staphylococcusaureus methionine aminopeptidase complexed with keto heterocycle and aminoketone inhibitors reveal the formation of a tetrahedral intermediate.

Douangamath, A, Dale, G.E, D'Arcy, A, Almstetter, M, Eckl, R, Frutos-Hoener, A, Henkel, B, Illgen, K, Nerdinger, S, Schulz, H, MacSweeney, A, Thormann, M, Treml, A, Pierau, S, Wadman, S, Oefner, C.Show

J.Med.Chem. 47 1325 1328 (2004)

PMID: 14998322 DOI: 10.1021/jm034188j

Abstact

High-resolution crystal structures of Staphylococcus aureus methionine aminopeptidase I in complex with various keto heterocycles and aminoketones were determined, and the intermolecular ligand interactions with the enzyme are reported. The compounds are effective inhibitors of the S. aureus enzyme because of the formation of an uncleavable tetrahedral intermediate upon binding. The electron densities unequivocally show the enzyme-catalyzed transition-state analogue mimicking that for amide bond hydrolysis of substrates.

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Protein

Chemical

Disease

Primary Citation of related structures