1XEV

Crystal structure of human carbonic anhydrase II in a new crystal form

• PDB DOI: https://doi.org/10.2210/pdb1XEV/pdb

• Classification: LYASE
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2004-09-13 Released: 2005-09-20 
• Deposition Author(s): Mazumdar, P.A., Kumaran, D., Das, A.K., Swaminathan, S.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free: 
  0.260 (Depositor), 0.260 (DCC) 
• R-Value Work: 
  0.210 (Depositor), 0.210 (DCC) 

Starting Model: experimental

Literature

Crystal structure of human carbonic anhydrase II in a new crystal form

Mazumdar, P.A., Kumaran, D., Das, A.K., Swaminathan, S.

To be published.

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.

Biological Assembly 3  

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

Biological assembly 3 assigned by authors.

Biological Assembly 4  

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

Biological assembly 4 assigned by authors.

Macromolecule Content

• Total Structure Weight: 117.42 kDa 
• Atom Count: 8,855 
• Modelled Residue Count: 1,034 
• Deposited Residue Count: 1,040 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Carbonic anhydrase II	A, B, C, D	260	Homo sapiens	Mutation(s): 0  Gene Names: CA2 EC: 4.2.1.1 (PDB Primary Data), 4.2.1.69 (UniProt)
UniProt & NIH Common Fund Data Resources
Find proteins for P00918 (Homo sapiens) Explore P00918  Go to UniProtKB:  P00918
PHAROS:  P00918 GTEx:  ENSG00000104267

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ZN	E [auth A], F [auth B], G [auth C], H [auth D]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free:  0.260 (Depositor), 0.260 (DCC) 
• R-Value Work:  0.210 (Depositor), 0.210 (DCC) 

Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 45.706	α = 90
b = 147.1	β = 91.33
c = 76.446	γ = 90

Software Package:

Software Name	Purpose
CBASS	data collection
HKL-2000	data reduction
MOLREP	phasing
CNS	refinement
HKL-2000	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2005-09-20 
Deposition Author(s): Mazumdar, P.A., Kumaran, D., Das, A.K., Swaminathan, S.

Revision History  

• Version 1.0: 2005-09-20
  Type: Initial release
  
• Version 1.1: 2008-04-30
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2023-08-23
  Changes: Data collection, Database references, Derived calculations, Refinement description