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 
  • R-Value Observed: 0.195 

wwPDB Validation   3D Report Full Report



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:  
    2X90, 2X91, 2X92, 2X8Z, 2X93, 2X94, 2X95, 2X96, 2X97, 2X8Y

  • 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 and C ...

    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:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
ANGIOTENSIN CONVERTING ENZYME A598Drosophila melanogasterMutation(s): 0 
Gene Names: AnceRaceCG8827
EC: 3.4.15.1
Find proteins for Q10714 (Drosophila melanogaster)
Explore Q10714 
Go to UniProtKB:  Q10714
Protein Feature View
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  • Reference Sequence
Oligosaccharides

Help

Entity ID: 2
MoleculeChainsChain Length2D Diagram Glycosylation3D Interactions
beta-D-mannopyranose-(1-6)-alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose
B
6 N-Glycosylation Oligosaccharides Interaction
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
RX3
Query on RX3

Download Ideal Coordinates CCD File 
A
N-({(1S,2R)-2-[(S)-[(1R)-1-{[(BENZYLOXY)CARBONYL]AMINO}-2-PHENYLETHYL](HYDROXY)PHOSPHORYL]CYCLOPENTYL}CARBONYL)-L-TRYPT OPHAN
C33 H36 N3 O7 P
IMPJIKIXNAGRCR-RRFVUZEHSA-N
 Ligand Interaction
EPE
Query on EPE

Download Ideal Coordinates CCD File 
A
4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACID
C8 H18 N2 O4 S
JKMHFZQWWAIEOD-UHFFFAOYSA-N
 Ligand Interaction
NAG
Query on NAG

Download Ideal Coordinates CCD File 
A
2-acetamido-2-deoxy-beta-D-glucopyranose
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
ZN
Query on ZN

Download Ideal Coordinates CCD File 
A
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
RX3Ki :  94000   nM  PDBBind
RX3Ki:  94000   nM  Binding MOAD
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.85 Å
  • R-Value Free: 0.215 
  • R-Value Work: 0.194 
  • R-Value Observed: 0.195 
  • Space Group: H 3
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 173.068α = 90
b = 173.068β = 90
c = 101.584γ = 120
Software Package:
Software NamePurpose
REFMACrefinement
HKL-2000data reduction
SCALEPACKdata scaling
PHASERphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-06-02
    Type: Initial release
  • Version 1.1: 2012-04-18
    Changes: Data collection, Non-polymer description, Version format compliance
  • Version 2.0: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Atomic model, Data collection, Derived calculations, Other, Structure summary