3M1Q

Carbonic Anhydrase II mutant W5C-H64C with opened disulfide bond

• PDB DOI: https://doi.org/10.2210/pdb3M1Q/pdb

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


• Deposited: 2010-03-05 Released: 2011-05-25 
• Deposition Author(s): Schulze Wischeler, J., Heine, A., Klebe, G.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.69 Å
• R-Value Free: 0.209 
• R-Value Work: 0.156 
• R-Value Observed: 0.160 

Starting Model: other

Literature

Mutational study on Carbonic Anhydrase II

Schulze Wischeler, J., Sandner, N.U., Heine, A., Klebe, G.

To be published.

Biological Assembly 1  

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

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

Macromolecule Content

• Total Structure Weight: 29.75 kDa 
• Atom Count: 2,240 
• Modelled Residue Count: 257 
• Deposited Residue Count: 265 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Carbonic anhydrase 2	A	265	Homo sapiens	Mutation(s): 2  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	B [auth A]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.69 Å
• R-Value Free: 0.209 
• R-Value Work: 0.156 
• R-Value Observed: 0.160 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 42.2	α = 90
b = 41.4	β = 104.3
c = 72	γ = 90

Software Package:

Software Name	Purpose
SHELXL-97	refinement
CNS	refinement
MAR345	data collection
HKL-2000	data reduction
HKL-2000	data scaling
CNS	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2011-05-25 
Deposition Author(s): Schulze Wischeler, J., Heine, A., Klebe, G.

Revision History  

• Version 1.0: 2011-05-25
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2017-11-08
  Changes: Refinement description
• Version 1.3: 2019-07-17
  Changes: Data collection, Refinement description
• Version 1.4: 2021-10-13
  Changes: Database references, Derived calculations
• Version 1.5: 2024-02-21
  Changes: Data collection
• Version 1.6: 2024-04-03
  Changes: Refinement description