2YDM

Structural characterization of angiotensin-I converting enzyme in complex with a selenium analogue of captopril


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.44 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.214 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structural Characterization of Angiotensin-I Converting Enzyme in Complex with a Selenium Analogue of Captopril

Akif, M.Masuyer, G.Schwager, S.L.U.Bhuyan, B.J.Mugesh, G.Isaac, R.E.Sturrock, E.D.Acharya, K.R.

(2011) FEBS J. 278: 3644

  • DOI: 10.1111/j.1742-4658.2011.08276.x
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Human somatic angiotensin I-converting enzyme (ACE), a zinc-dependent dipeptidyl carboxypeptidase, is central to the regulation of the renin-angiotensin aldosterone system. It is a well-known target for combating hypertension and related cardiovascul ...

    Human somatic angiotensin I-converting enzyme (ACE), a zinc-dependent dipeptidyl carboxypeptidase, is central to the regulation of the renin-angiotensin aldosterone system. It is a well-known target for combating hypertension and related cardiovascular diseases. In a recent study by Bhuyan and Mugesh [Org. Biomol. Chem. (2011) 9, 1356-1365], it was shown that the selenium analogues of captopril (a well-known clinical inhibitor of ACE) not only inhibit ACE, but also protect against peroxynitrite-mediated nitration of peptides and proteins. Here, we report the crystal structures of human testis ACE (tACE) and a homologue of ACE, known as AnCE, from Drosophila melanogaster in complex with the most promising selenium analogue of captopril (SeCap) determined at 2.4 and 2.35 Å resolution, respectively. The inhibitor binds at the active site of tACE and AnCE in an analogous fashion to that observed for captopril and provide the first examples of a protein-selenolate interaction. These new structures of tACE-SeCap and AnCE-SeCap inhibitor complexes presented here provide important information for further exploration of zinc coordinating selenium-based ACE inhibitor pharmacophores with significant antioxidant activity.


    Organizational Affiliation

    Department of Biology and Biochemistry, University of Bath, Bath, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
ANGIOTENSIN CONVERTING ENZYME
A
589Homo sapiensMutation(s): 0 
Gene Names: ACE (DCP, DCP1)
EC: 3.2.1.-, 3.4.15.1
Find proteins for P12821 (Homo sapiens)
Go to Gene View: ACE
Go to UniProtKB:  P12821
Small Molecules
Ligands 5 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

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Download CCD File 
A
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
CL
Query on CL

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Download CCD File 
A
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
BMA
Query on BMA

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Download CCD File 
A
BETA-D-MANNOSE
C6 H12 O6
WQZGKKKJIJFFOK-RWOPYEJCSA-N
 Ligand Interaction
NAG
Query on NAG

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Download CCD File 
A
N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
SLC
Query on SLC

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Download CCD File 
A
SELENO-CAPTOPRIL
1-[2-(SELANYLMETHYL)ACRYLOYL]-L-PROLINE
C9 H13 N O3 Se
YLSOIJMYGUURIT-ZETCQYMHSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
SLCIC50: 36.4 nM BINDINGMOAD
SLCIC50: 36.4 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.44 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.214 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 56.143α = 90.00
b = 84.533β = 90.00
c = 132.270γ = 90.00
Software Package:
Software NamePurpose
SCALAdata scaling
PHASERphasing
XDSdata reduction
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-09-14
    Type: Initial release
  • Version 1.1: 2011-10-19
    Type: Database references
  • Version 1.2: 2012-11-21
    Type: Database references