1DMX

MURINE MITOCHONDRIAL CARBONIC ANYHDRASE V AT 2.45 ANGSTROMS RESOLUTION


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.45 Å
  • R-Value Free: 0.286 
  • R-Value Work: 0.168 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure determination of murine mitochondrial carbonic anhydrase V at 2.45-A resolution: implications for catalytic proton transfer and inhibitor design.

Boriack-Sjodin, P.A.Heck, R.W.Laipis, P.J.Silverman, D.N.Christianson, D.W.

(1995) Proc.Natl.Acad.Sci.USA 92: 10949-10953

  • Primary Citation of Related Structures:  1DMY

  • PubMed Abstract: 
  • The three-dimensional structure of murine mitochondrial carbonic anhydrase V has been determined and refined at 2.45-A resolution (crystallographic R factor = 0.187). Significant structural differences unique to the active site of carbonic anhydrase ...

    The three-dimensional structure of murine mitochondrial carbonic anhydrase V has been determined and refined at 2.45-A resolution (crystallographic R factor = 0.187). Significant structural differences unique to the active site of carbonic anhydrase V are responsible for differences in the mechanism of catalytic proton transfer as compared with other carbonic anhydrase isozymes. In the prototypical isozyme, carbonic anhydrase II, catalytic proton transfer occurs via the shuttle group His-64; carbonic anhydrase V has Tyr-64, which is not an efficient proton shuttle due in part to the bulky adjacent side chain of Phe-65. Based on analysis of the structure of carbonic anhydrase V, we speculate that Tyr-131 may participate in proton transfer due to its proximity to zinc-bound solvent, its solvent accessibility, and its electrostatic environment in the protein structure. Finally, the design of isozyme-specific inhibitors is discussed in view of the complex between carbonic anhydrase V and acetazolamide, a transition-state analogue. Such inhibitors may be physiologically important in the regulation of blood glucose levels.


    Related Citations: 
    • Catalytic Properties of Mouse Carbonic Anhydrase V
      Heck, R.W.,Tanhauser, S.M.,Manda, R.,TU, C.,Laipis, P.J.,Silverman, D.N.
      (1994) J.Biol.Chem. 269: 24742


    Organizational Affiliation

    Department of Chemistry, University of Pennsylvania, Philadelphia 19104-6323, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
MURINE CARBONIC ANHYDRASE V
A, B
248Mus musculusGene Names: Ca5a (Ca5, Car5, Car5a)
EC: 4.2.1.1
Find proteins for P23589 (Mus musculus)
Go to UniProtKB:  P23589
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download SDF File 
Download CCD File 
A, B
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.45 Å
  • R-Value Free: 0.286 
  • R-Value Work: 0.168 
  • Space Group: P 1
Unit Cell:
Length (Å)Angle (°)
a = 48.690α = 67.65
b = 60.370β = 75.26
c = 60.440γ = 75.21
Software Package:
Software NamePurpose
X-PLORrefinement
MOSFLMdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1996-04-03
    Type: Initial release
  • Version 1.1: 2008-03-03
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance