1CNW

SECONDARY INTERACTIONS SIGNIFICANTLY REMOVED FROM THE SULFONAMIDE BINDING POCKET OF CARBONIC ANHYDRASE II INFLUENCE BINDING CONSTANTS


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.0 Å
  • R-Value Observed: 0.174

Literature

Macromolecules
Sequence Display for 1CNW

Classification: LYASE (OXO-ACID)

Total Structure Weight: 29943.50

Macromolecule Entities
Molecule Chains Length Organism Details
CARBONIC ANHYDRASE II A 260 Homo sapiens EC#: 4.2.1.1 IUBMB
Gene Name(s): CA2 Gene View
Metabolic Pathways
Maps:       
Reactions:
ESCHER  BiGG

Small Molecules
Ligands 3 Unique
ID Chains Name / Formula / InChI Key 2D Diagram 3D Interactions
EG1
Query on EG1

A AMINOMETHYLENECARBONYLAMINODI(ETHYLOXY)ETHYLAMINOCARBONYLBENZENESULFONAMIDE
C15 H24 N4 O6 S
OIKKGRHOXPAPMW-UHFFFAOYSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
HG
Query on HG

A MERCURY (II) ION
Hg
BQPIGGFYSBELGY-UHFFFAOYSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
ZN
Query on ZN

A ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
External Ligand Annotations
ID Binding Affinity (Sequence Identity %)
EG1 N/A in BindingDB
Kd: 19 nM  BindingMOAD
Kd: 19 nM  PDBbind

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.0 Å
  • R-Value Observed: 0.174
  • Space Group: P 1 21 1

Unit Cell:

Length (Å) Angle (°)
a = 42.70 α = 90.00
b = 41.70 β = 104.60
c = 73.00 γ = 90.00

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History

Deposition Data

  • Deposited Date: 1995-07-21
  • Released Date: 1995-11-14
  • Deposition author(s): Boriack, P.A., Christianson, D.W.

Revision History

  • Version 1_0: 1995-11-14

    Type: Initial release

  • Version 1_1: 2008-03-24

    Type: Version format compliance

  • Version 1_2: 2011-07-13

    Type: Version format compliance