4KUY

Crystal structure of human carbonic anhydrase II in complex with the 5-(3-(o-tolylsulfonyl)ureido)pyridine-2-sulfonamide inhibitor

• PDB DOI: https://doi.org/10.2210/pdb4KUY/pdb

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


• Deposited: 2013-05-22 Released: 2014-06-25 
• Deposition Author(s): Ferraroni, M.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.65 Å
• R-Value Free: 0.189 
• R-Value Work: 0.157 
• R-Value Observed: 0.159 

Starting Model: experimental

Literature

New classes of carbonic anhydrase inhibitors

Ferraroni, M., Supuran, C.T., Carta, F., Bozdag, M., Scozzafava, A.

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: 29.54 kDa 
• Atom Count: 2,537 
• Modelled Residue Count: 257 
• Deposited Residue Count: 257 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Carbonic anhydrase 2	A	257	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 4 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
MB4	E [auth A]	5-({[(2-methylphenyl)sulfonyl]carbamoyl}amino)pyridine-2-sulfonamide C13 H14 N4 O5 S2 FSPCZTCUVKLQSU-UHFFFAOYSA-N
GOL	D [auth A]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N
BME	C [auth A]	BETA-MERCAPTOETHANOL C2 H6 O S DGVVWUTYPXICAM-UHFFFAOYSA-N
ZN	B [auth A]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.65 Å
• R-Value Free: 0.189 
• R-Value Work: 0.157 
• R-Value Observed: 0.159 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 42.21	α = 90
b = 41.186	β = 104.19
c = 71.956	γ = 90

Software Package:

Software Name	Purpose
XSCALE	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
XDS	data reduction
XDS	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2014-06-25 
Deposition Author(s): Ferraroni, M.

Revision History  

• Version 1.0: 2014-06-25
  Type: Initial release
  
• Version 1.1: 2023-09-20
  Changes: Data collection, Database references, Derived calculations, Refinement description