Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Biological Assembly 2  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 2 assigned by authors.

Macromolecule Content

• Total Structure Weight: 141.45 kDa 
• Atom Count: 9,830 
• Modelled Residue Count: 1,196 
• Deposited Residue Count: 1,214 
• Unique protein chains: 1

 1J37

Crystal Structure of Drosophila AnCE

• PDB DOI: 10.2210/pdb1J37/pdb

• Classification: HYDROLASE
• Organism(s): Drosophila melanogaster
• Expression System: Spodoptera frugiperda
• Mutation(s): No 


• Deposited: 2003-01-20 Released: 2003-07-20 
• Deposition Author(s): Kim, H.M., Shin, D.R., Yoo, O.J., Lee, H., Lee, J.-O.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.40 Å
• R-Value Free: 0.283 
• R-Value Work: 0.241 
• R-Value Observed: 0.241 

Literature

Crystal structure of Drosophila angiotensin I-converting enzyme bound to captopril and lisinopril

Kim, H.M., Shin, D.R., Yoo, O.J., Lee, H., Lee, J.-O.

(2003) FEBS Lett 538: 65-70

• PubMed: 12633854 
• DOI: 10.1016/s0014-5793(03)00128-5
• Primary Citation of Related Structures:  
  1J36, 1J37, 1J38


• PubMed Abstract: 
  

Angiotensin I-converting enzymes (ACEs) are zinc metallopeptidases that cleave carboxy-terminal dipeptides from short peptide hormones. We have determined the crystal structures of AnCE, a Drosophila homolog of ACE, with and without bound inhibitors to 2.4 A resolution. AnCE contains a large internal channel encompassing the entire protein molecule. This substrate-binding channel is composed of two chambers, reminiscent of a peanut shell. The inhibitor and zinc-binding sites are located in the narrow bottleneck connecting the two chambers. The substrate and inhibitor specificity of AnCE appears to be determined by extensive hydrogen-bonding networks and ionic interactions in the active site channel. The catalytically important zinc ion is coordinated by the conserved Glu395 and histidine residues from a HExxH motif.

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Organizational Affiliation: 

Department of Biological Science, Korea Advanced Institute of Science and Technology, 373-1 Kusong-dong, Yusong-gu, Daejeon, South Korea.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
angiotensin converting enzyme	A, B	607	Drosophila melanogaster	Mutation(s): 0  Gene Names: Ance, Race, CG8827 EC: 3.4.15.1
UniProt
Find proteins for Q10714 (Drosophila melanogaster) Explore Q10714  Go to UniProtKB:  Q10714

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
X8Z	D [auth A], F [auth B]	L-CAPTOPRIL C9 H15 N O3 S FAKRSMQSSFJEIM-RQJHMYQMSA-N
ZN	C [auth A], E [auth B]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N

Binding Affinity Annotations
ID	Source	Binding Affinity
MCO	PDBBind:  1J37	Ki: 1.1 (nM) from 1 assay(s)
X8Z	Binding MOAD:  1J37	Ki: 1.1 (nM) from 1 assay(s)

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.40 Å
• R-Value Free: 0.283 
• R-Value Work: 0.241 
• R-Value Observed: 0.241 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 94.912	α = 90
b = 121.223	β = 99.39
c = 94.74	γ = 90

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
SOLVE	phasing
CNS	refinement

Structure Validation

Entry History 

Deposition Data

• Released Date: 2003-07-20 
Deposition Author(s): Kim, H.M., Shin, D.R., Yoo, O.J., Lee, H., Lee, J.-O.

Revision History  

• Version 1.0: 2003-07-20
  Type: Initial release
  
• Version 1.1: 2008-04-27
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2013-05-08
  Changes: Non-polymer description