Biological Assembly 1  

 3D View: Structure | Electron Density | Ligand Interaction

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

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 30.40 kDa 
• Atom Count: 2374 
• Residue Count: 262 
• Unique protein chains: 1

3ML5

Crystal structure of the C183S/C217S mutant of human CA VII in complex with acetazolamide

• DOI: 10.2210/pdb3ML5/pdb

• Classification: LYASE
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2010-04-16 Released: 2011-03-02 
• Deposition Author(s): Di Fiore, A., Truppo, E., Supuran, C.T., Alterio, V., Dathan, N., Bootorabi, F., Parkkila, S., Monti, S.M., De Simone, G.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.05 Å
• R-Value Free: 0.207 
• R-Value Work: 0.166 

Literature

Crystal structure of the C183S/C217S mutant of human CA VII in complex with acetazolamide

Di Fiore, A., Truppo, E., Supuran, C.T., Alterio, V., Dathan, N., Bootorabi, F., Parkkila, S., Monti, S.M., De Simone, G.

(2010) Bioorg Med Chem Lett 20: 5023-5026

• PubMed: 20688517 
• DOI: 10.1016/j.bmcl.2010.07.051
• Primary Citation of Related Structures:  
  3ML5


• PubMed Abstract: 
  

Human carbonic anhydrase VII (hCA VII) is a cytosolic member of the alpha-CA family. This enzyme is mainly localized in a number of brain tissues such as the cortex, hippocampus and thalamus and has been noted for its contribution in generating neuronal excitation and seizures. Recently, it has been also proposed that hCA VII may be involved in the control of neuropathic pain, thus its inhibition may offer a new approach in designing pain killers useful for combating neuropathic pain. We report here the X-ray crystallographic structure of a mutated form of human CA VII in complex with acetazolamide, a classical sulfonamide inhibitor. These crystallographic studies provide important implications for the rational drug design of selective CA inhibitors with clinical applications.

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Organizational Affiliation: 

Istituto di Biostrutture e Bioimmagini-CNR, Napoli, Italy.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Carbonic anhydrase 7	A	269	Homo sapiens	Mutation(s): 2  Gene Names: CA7 EC: 4.2.1.1
Find proteins for P43166 (Homo sapiens) Explore P43166  Go to UniProtKB:  P43166
NIH Common Fund Data Resources
PHAROS:  P43166 GTEx:  ENSG00000168748

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
AZM	A	5-ACETAMIDO-1,3,4-THIADIAZOLE-2-SULFONAMIDE C4 H6 N4 O3 S2 BZKPWHYZMXOIDC-UHFFFAOYSA-N
ZN	A	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N

External Ligand Annotations
ID	Binding Affinity (Sequence Identity %)
AZM	Ki :  3   nM  PDBBind

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.05 Å
• R-Value Free: 0.207 
• R-Value Work: 0.166 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 43.78	α = 90
b = 66.28	β = 113.84
c = 46.46	γ = 90

Software Package:

Software Name	Purpose
AMoRE	phasing
CNS	refinement
HKL-2000	data reduction
HKL-2000	data scaling

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2010-04-16 
• Released Date: 2011-03-02 
Deposition Author(s): Di Fiore, A., Truppo, E., Supuran, C.T., Alterio, V., Dathan, N., Bootorabi, F., Parkkila, S., Monti, S.M., De Simone, G.

Revision History 

• Version 1.0: 2011-03-02
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance