4GL1

Structure of H64A/N62L/N67L Human Carbonic Anhydrase II triple mutant

• PDB DOI: https://doi.org/10.2210/pdb4GL1/pdb

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


• Deposited: 2012-08-13 Released: 2013-09-04 
• Deposition Author(s): West, D.M.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.50 Å
• R-Value Free: 0.194 
• R-Value Work: 0.169 
• R-Value Observed: 0.171 

Literature

Hydrophobicity and low pKa impact catalytic efficiency of Human Carbonic Anhydrases

West, D.M., Silverman, D.N., 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: 29.29 kDa 
• Atom Count: 2,400 
• Modelled 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 [auth X]	260	Homo sapiens	Mutation(s): 3  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 X]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.50 Å
• R-Value Free: 0.194 
• R-Value Work: 0.169 
• R-Value Observed: 0.171 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 42.07	α = 90
b = 41.143	β = 104.08
c = 71.685	γ = 90

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
PHENIX	refinement
PDB_EXTRACT	data extraction
HKL-2000	data collection
PHENIX	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2013-09-04 
Deposition Author(s): West, D.M.

Revision History  

• Version 1.0: 2013-09-04
  Type: Initial release
  
• Version 1.1: 2017-11-15
  Changes: Advisory, Refinement description
• Version 1.2: 2024-02-28
  Changes: Advisory, Data collection, Database references, Derived calculations