ISDA: 3BCJ

Deposition Date 2007-11-13

Release Date 2008-04-08

Last Version Date 2023-11-01

Entry Detail

PDB ID:

3BCJ

Keywords:

OXIDOREDUCTASE

Title:

Crystal structure of Aldose Reductase complexed with 2S4R (Stereoisomer of Fidarestat, 2S4S) at 0.78 A

Biological Source:

Source Organism:

Homo sapiens (Taxon ID: 9606)

Host Organism:

Escherichia coli BL21

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

0.78 Å

R-Value Free:

0.11

R-Value Work:

0.10

R-Value Observed:

0.10

Space Group:

P 1 21 1

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Macromolecular Entities

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Aldose reductase
Gene (Uniprot):AKR1B1
Chain IDs:A
Chain Length:316
Number of Molecules:1
Biological Source:Homo sapiens

UniProt ID:P15121 Pfam ID:PF00248 EC:1.1.1.188

Ligand Molecules

CIT

FIS

NAP

Primary Citation

Unusual Binding Mode of the 2S4R Stereoisomer of the Potent Aldose Reductase Cyclic Imide Inhibitor Fidarestat (2S4S) in the 15 K Crystal Structure of the Ternary Complex Refined at 0.78 A Resolution: Implications for the Inhibition Mechanism

Zhao, H.T, Hazemann, I, Mitschler, A, Carbone, V, Joachimiak, A, Ginell, S, Podjarny, A, El-Kabbani, O.Show

J.Med.Chem. 51 1478 1481 (2008)

PMID: 18284183 DOI: 10.1021/jm701514k

Abstact

The structure of human aldose reductase in complex with the 2 S4 R stereoisomer of the potent inhibitor Fidarestat ((2 S,4 S)-6-fluoro-2',5'-dioxospiro-[chroman-4,4'-imidazoline]-2-carboxamide) was determined at 15 K and a resolution of 0.78 A. The structure of the complex provides experimental evidence for the inhibition mechanism in which Fidarestat is initially bound neutral and then becomes negatively charged by donating the proton at the 1'-position nitrogen of the cyclic imide ring to the N2 atom of the catalytic His110.

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