Biological Assembly 1  

 3D View: Structure | Electron Density | Ligand Interaction

Standalone Viewers  
Protein Workshop | Ligand Explorer

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

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

Macromolecule Content

• Total Structure Weight: 29815.04 
• Atom Count: 2110 
• Residue Count: 260 
• Unique protein chains: 1

3OYS

Human Carbonic Anhydrase II complexed with 2-{[4-AMINO-3-(3-HYDROXYPROP-1-YN-1-YL)-1H-PYRAZOLO[3,4-D]PYRIMIDIN-1-YL]METHYL}-5-METHYL-3-(2-METHYLPHENYL)QUINAZOLIN-4(3H)-ONE

• DOI: 10.2210/pdb3OYS/pdb

• Classification: lyase/lyase inhibitor
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21(DE3)


• Deposited: 2010-09-23 Released: 2011-08-10 
• Deposition Author(s): Aggarwal, M., McKenna, R.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.538 Å
• R-Value Free: 0.174 
• R-Value Work: 0.157 

Literature

Anticonvulsant 4-aminobenzenesulfonamide derivatives with branched-alkylamide moieties: X-ray crystallography and inhibition studies of human carbonic anhydrase isoforms I, II, VII, and XIV.

Hen, N., Bialer, M., Yagen, B., Maresca, A., Aggarwal, M., Robbins, A.H., McKenna, R., Scozzafava, A., Supuran, C.T.

(2011) J.Med.Chem. 54: 3977-3981

• PubMed: 21506569 
• DOI: 10.1021/jm200209n
• Primary Citation of Related Structures:  
  3OYQ, 3OY0


• PubMed Abstract: 
  

Aromatic amides comprising branched aliphatic carboxylic acids and 4-aminobenzenesulfonamide were evaluated for their inhibition of carbonic anhydrase (CA) isoforms. Of the most anticonvulsant-active compounds (2, 4, 13, 16, and 17), only 13, 16, and 17 were potent inhibitors of CAs VII and XIV. Compounds 9, 14, and 19 inhibited CA II, while 10 and 12 inhibited all isoforms. Structural studies suggest that differences in the active sites' hydrophobicity modulate the affinity of the inhibitors.

---

Organizational Affiliation: 

Institute for Drug Research, The Hebrew University of Jerusalem , Jerusalem, Israel.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
Carbonic anhydrase 2	A	260	Homo sapiens	Mutation(s): 0  Gene Names: CA2 EC: 4.2.1.1
Find proteins for P00918 (Homo sapiens) Go to Gene View: CA2 Go to UniProtKB:  P00918

Small Molecules

Ligands 4 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram & Interactions
ZN	A	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N
GOL	A	GLYCEROL GLYCERIN; PROPANE-1,2,3-TRIOL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N
OYS	A	2-phenyl-N-(4-sulfamoylphenyl)acetamide C14 H14 N2 O3 S JWDLYKTZCRIGNW-UHFFFAOYSA-N
DMS	A	DIMETHYL SULFOXIDE C2 H6 O S IAZDPXIOMUYVGZ-UHFFFAOYSA-N

External Ligand Annotations
ID	Binding Affinity (Sequence Identity %)
OYS	Ki: 9 - 107 nM (100) BINDINGDB
OYS	Ki: 9 nM BINDINGMOAD
OYS	Ki: 9 nM PDBBIND

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.538 Å
• R-Value Free: 0.174 
• R-Value Work: 0.157 
• Space Group: P 1 2₁ 1

Unit Cell:

Length (Å)	Angle (°)
a = 42.404	α = 90.00
b = 41.402	β = 104.14
c = 72.053	γ = 90.00

Software Package:

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

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2010-09-23 
• Released Date: 2011-08-10 
• Deposition Author(s): Aggarwal, M., McKenna, R.

Revision History 

• Version 1.0: 2011-08-10
  Type: Initial release
• Version 1.1: 2017-11-08
  Type: Refinement description