4PXX | pdb_00004pxx

Crystal structure of a highly thermal stabilized variant of Human Carbonic Anhydrase II

• PDB DOI: https://doi.org/10.2210/pdb4PXX/pdb

• Classification: Lyase/lyase Inhibitor
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2014-03-25 Released: 2015-06-10 
• Deposition Author(s): Boone, C.D., Habibzadegan, A., McKenna, R.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.85 Å
• R-Value Free: 
  0.229 (Depositor), 0.230 (DCC) 
• R-Value Work: 
  0.186 (Depositor), 0.188 (DCC) 
• R-Value Observed: 
  0.188 (Depositor) 

Literature

Crystal structure of a highly thermal stabilized variant of Human Carbonic Anhydrase II

Boone, C.D., Habibzadegan, A., McKenna, R.

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: 29.78 kDa 
• Atom Count: 2,225 
• Modeled Residue Count: 258 
• Deposited Residue Count: 260 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Carbonic anhydrase 2	A	260	Homo sapiens	Mutation(s): 6  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 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
CHD	C [auth A]	CHOLIC ACID C24 H40 O5 BHQCQFFYRZLCQQ-OELDTZBJSA-N
ZN	B [auth A]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N
MG	D [auth A]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.85 Å
• R-Value Free:  0.229 (Depositor), 0.230 (DCC) 
• R-Value Work:  0.186 (Depositor), 0.188 (DCC) 
• R-Value Observed: 0.188 (Depositor) 

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 41.847	α = 90
b = 72.56	β = 90
c = 74.335	γ = 90

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
PHENIX	refinement
PDB_EXTRACT	data extraction
CrystalClear	data collection
PHENIX	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2015-06-10 
Deposition Author(s): Boone, C.D., Habibzadegan, A., McKenna, R.

Revision History  

• Version 1.0: 2015-06-10
  Type: Initial release
  
• Version 1.1: 2017-11-22
  Changes: Refinement description
• Version 1.2: 2024-11-27
  Changes: Data collection, Database references, Derived calculations, Structure summary