2X96

Crystal structure of AnCE-RXPA380 complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.85 Å
  • R-Value Free: 0.215 
  • R-Value Work: 0.194 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

High Resolution Crystal Structures of Drosophila Melanogaster Angiotensin Converting Enzyme in Complex with Novel Inhibitors and Anti- Hypertensive Drugs.

Akif, M.Georgiadis, D.Mahajan, A.Dive, V.Sturrock, E.D.Isaac, R.E.Acharya, K.R.

(2010) J.Mol.Biol. 400: 502

  • DOI: 10.1016/j.jmb.2010.05.024
  • Primary Citation of Related Structures:  2X8Y, 2X8Z, 2X90, 2X91, 2X92, 2X93, 2X94, 2X95, 2X97

  • PubMed Abstract: 
  • Angiotensin I-converting enzyme (ACE), one of the central components of the renin-angiotensin system, is a key therapeutic target for the treatment of hypertension and cardiovascular disorders. Human somatic ACE (sACE) has two homologous domains (N a ...

    Angiotensin I-converting enzyme (ACE), one of the central components of the renin-angiotensin system, is a key therapeutic target for the treatment of hypertension and cardiovascular disorders. Human somatic ACE (sACE) has two homologous domains (N and C). The N- and C-domain catalytic sites have different activities toward various substrates. Moreover, some of the undesirable side effects of the currently available and widely used ACE inhibitors may arise from their targeting both domains leading to defects in other pathways. In addition, structural studies have shown that although both these domains have much in common at the inhibitor binding site, there are significant differences and these are greater at the peptide binding sites than regions distal to the active site. As a model system, we have used an ACE homologue from Drosophila melanogaster (AnCE, a single domain protein with ACE activity) to study ACE inhibitor binding. In an extensive study, we present high-resolution structures for native AnCE and in complex with six known antihypertensive drugs, a novel C-domain sACE specific inhibitor, lisW-S, and two sACE domain-specific phosphinic peptidyl inhibitors, RXPA380 and RXP407 (i.e., nine structures). These structures show detailed binding features of the inhibitors and highlight subtle changes in the orientation of side chains at different binding pockets in the active site in comparison with the active site of N- and C-domains of sACE. This study provides information about the structure-activity relationships that could be utilized for designing new inhibitors with improved domain selectivity for sACE.


    Organizational Affiliation

    Department of Biology and Biochemistry, University of Bath, Claverton Down, Building 4 South, Bath BA2 7AY, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
ANGIOTENSIN CONVERTING ENZYME
A
598Drosophila melanogasterGene Names: Ance (Race)
EC: 3.4.15.1
Find proteins for Q10714 (Drosophila melanogaster)
Go to UniProtKB:  Q10714
Small Molecules
Ligands 6 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
EPE
Query on EPE

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A
4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACID
HEPES
C8 H18 N2 O4 S
JKMHFZQWWAIEOD-UHFFFAOYSA-N
 Ligand Interaction
ZN
Query on ZN

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A
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
MAN
Query on MAN

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Download CCD File 
A
ALPHA-D-MANNOSE
C6 H12 O6
WQZGKKKJIJFFOK-PQMKYFCFSA-N
 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
RX3
Query on RX3

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A
N-({(1S,2R)-2-[(S)-[(1R)-1-{[(BENZYLOXY)CARBONYL]AMINO}-2-PHENYLETHYL](HYDROXY)PHOSPHORYL]CYCLOPENTYL}CARBONYL)-L-TRYPTOPHAN
RXPA380
C33 H36 N3 O7 P
IMPJIKIXNAGRCR-RRFVUZEHSA-N
 Ligand Interaction
NAG
Query on NAG

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A
N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
RX3Ki: 94000 nM BINDINGMOAD
RX3Ki: 94000 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.85 Å
  • R-Value Free: 0.215 
  • R-Value Work: 0.194 
  • Space Group: H 3
Unit Cell:
Length (Å)Angle (°)
a = 173.068α = 90.00
b = 173.068β = 90.00
c = 101.584γ = 120.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
REFMACrefinement
HKL-2000data reduction
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-06-02
    Type: Initial release
  • Version 1.1: 2012-04-18
    Type: Data collection, Non-polymer description, Version format compliance