2CAB

STRUCTURE, REFINEMENT AND FUNCTION OF CARBONIC ANHYDRASE ISOZYMES. REFINEMENT OF HUMAN CARBONIC ANHYDRASE I


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Work: 0.193 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Structure, refinement, and function of carbonic anhydrase isozymes: refinement of human carbonic anhydrase I

Kannan, K.K.Ramanadham, M.Jones, T.A.

(1984) Ann.N.Y.Acad.Sci. 429: 49-60


  • PubMed Abstract: 
  • The structure of human erythrocyte carbonic anhydrase I has been refined to a final R value of 19% to 2-A resolution by a combination of least squares refinement and model fitting in a three-dimensional graphics display. About 300 solvent atoms have ...

    The structure of human erythrocyte carbonic anhydrase I has been refined to a final R value of 19% to 2-A resolution by a combination of least squares refinement and model fitting in a three-dimensional graphics display. About 300 solvent atoms have been located bound to the protein molecule. An interesting hydrogen bond network involving Zn2+, the liganded solvent, side chain groups of Thr-199, Glu-106, Thr-7, and His-64 through two solvent molecules have been found that may be important for the catalytic mechanism of the carbonic anhydrase.


    Related Citations: 
    • Structure and Function of Carbonic Anhydrases. Imidazole Binding to Human Carbonic Anhydrace B and the Mechanism of Action of Carbonic Anhydrases
      Kannan, K.K.,Petef, M.,Fridborg, K.,Cid-Dresdner, H.,Lovgren, S.
      (1977) FEBS Lett. 73: 115
    • Structure, Refinement, and Function of Human Carbonic Anhydrase-B
      Kannan, K.K.,Ramanadham, M.
      (1981) Int.J.Quantum Chem.Quantum Chem.Symp. 20: 199
    • Structure and Function of Carbonic Anhydrases
      Kannan, K.K.
      (1980) Biomolecular Structure, Conformation, Function and Evolution 1: 165
    • Crystal Structure of Human Erythrocyte Carbonic Anhydrase B, Three-Dimensional Structure at a Nominal 2.2 Angstroms Resolution
      Kannan, K.K.,Notstrand, B.,Fridborg, K.,Lovgren, S.,Ohlsson, A.,Petef, M.
      (1975) Proc.Natl.Acad.Sci.USA 72: 51
    • Structural Relationship of Human Erythrocyte Carbonic Anhydrase Isozymes B and C
      Notstrand, B.,Vaara, I.,Kannan, K.K.
      (1975) Isozymes-Molecular Structure 1: 575
    • Crystal Structure of Carbonic Anhydrase
      Kannan, K.K.
      (1980) Biophysics and Physiology of Carbon Dioxide --: 184



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
CARBONIC ANHYDRASE FORM B
A
260Homo sapiensGene Names: CA1
EC: 4.2.1.1
Find proteins for P00915 (Homo sapiens)
Go to Gene View: CA1
Go to UniProtKB:  P00915
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

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

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Work: 0.193 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 81.500α = 90.00
b = 73.600β = 90.00
c = 37.100γ = 90.00
Software Package:
Software NamePurpose
CORELSrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1984-02-02
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2017-11-29
    Type: Derived calculations, Other