2XHM

Crystal structure of AnCE-K26 complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.96 Å
  • R-Value Free: 0.215 
  • R-Value Work: 0.194 
  • R-Value Observed: 0.195 

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This is version 2.0 of the entry. See complete history


Literature

Crystal Structure of a Phosphonotripeptide K-26 in Complex with Angiotensin Converting Enzyme Homologue (Ance) from Drosophila Melanogaster.

Akif, M.Ntai, I.Sturrock, E.D.Isaac, R.E.Bachmann, B.O.Acharya, K.R.

(2010) Biochem Biophys Res Commun 398: 532

  • DOI: 10.1016/j.bbrc.2010.06.113
  • Primary Citation of Related Structures:  
    2XHM

  • PubMed Abstract: 
  • Angiotensin-I converting enzyme (ACE, a zinc dependent dipeptidyl carboxypeptidase) is a major target of drugs due to its role in the modulation of blood pressure and cardiovascular disorders. Here we present a crystal structure of AnCE (an ACE homologue from Drosophila melanogaster with a single enzymatic domain) in complex with a natural product-phosphonotripeptide, K-26 at 1 ...

    Angiotensin-I converting enzyme (ACE, a zinc dependent dipeptidyl carboxypeptidase) is a major target of drugs due to its role in the modulation of blood pressure and cardiovascular disorders. Here we present a crystal structure of AnCE (an ACE homologue from Drosophila melanogaster with a single enzymatic domain) in complex with a natural product-phosphonotripeptide, K-26 at 1.96A resolution. The inhibitor binds exclusively in the S(1) and S(2) binding pockets of AnCE (coordinating the zinc ion) through ionic and hydrogen bond interactions. A detailed structural comparison of AnCE.K-26 complex with individual domains of human somatic ACE provides useful information for further exploration of ACE inhibitor pharmacophores involving phosphonic acids.


    Organizational Affiliation

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



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
ANGIOTENSIN CONVERTING ENZYMEA598Drosophila melanogasterMutation(s): 0 
Gene Names: AnceRaceCG8827
EC: 3.4.15.1
UniProt
Find proteins for Q10714 (Drosophila melanogaster)
Explore Q10714 
Go to UniProtKB:  Q10714
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ10714
Protein Feature View
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  • Reference Sequence
Oligosaccharides

Help

Entity ID: 2
MoleculeChainsChain Length2D DiagramGlycosylation3D 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-glucopyranoseB 6N-Glycosylation Oligosaccharides Interaction
Glycosylation Resources
GlyTouCan:  G64803HZ
GlyCosmos:  G64803HZ
GlyGen:  G64803HZ
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
K26
Query on K26

Download Ideal Coordinates CCD File 
C [auth A]N-ACETYL-L-ILE-L-TYR-(R)-1-AMINO-2-(4-HYDROXYPHENYL)ETHYLPHOSPHONIC ACID
C25 H34 N3 O8 P
ZFRNBYWFOLDQKG-FDMHNHSTSA-N
 Ligand Interaction
EPE
Query on EPE

Download Ideal Coordinates CCD File 
E [auth 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 
F [auth A],
G [auth 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 
D [auth A]ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
Binding Affinity Annotations 
IDSourceBinding Affinity
K26 PDBBind:  2XHM Ki: 160 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.96 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 = 172.707α = 90
b = 172.707β = 90
c = 101.696γ = 120
Software Package:
Software NamePurpose
REFMACrefinement
HKL-2000data reduction
SCALEPACKdata scaling
PHASERphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2010-07-14
    Type: Initial release
  • Version 1.1: 2011-05-08
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 2.0: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Atomic model, Data collection, Derived calculations, Other, Structure summary