5CLU

THE CRYSTAL STRUCTURE OF THE COMPLEX of HCAII WITH A SACCHARINE DERIVATIVE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.55 Å
  • R-Value Free: 0.186 
  • R-Value Work: 0.160 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

A Combined Crystallographic and Theoretical Study Explains the Capability of Carboxylic Acids to Adopt Multiple Binding Modes in the Active Site of Carbonic Anhydrases.

Langella, E.D'Ambrosio, K.D'Ascenzio, M.Carradori, S.Monti, S.M.Supuran, C.T.De Simone, G.

(2016) Chemistry 22: 97-100

  • DOI: 10.1002/chem.201503748
  • Primary Citation of Related Structures:  
    5CLU

  • PubMed Abstract: 
  • Carboxylates are the least investigated class of inhibitors of carbonic anhydrases (CAs). Here we explain the versatility of binding of these molecules to CAs by examining a new adduct of hCA II with N-carboxymethyl-saccharin.


    Organizational Affiliation

    Istituto di Biostrutture e Bioimmagini-CNR, via Mezzocannone 16, 80134 Napoli (Italy). gdesimon@unina.it.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Carbonic anhydrase 2A257Homo sapiensMutation(s): 0 
Gene Names: CA2
EC: 4.2.1.1
Find proteins for P00918 (Homo sapiens)
Explore P00918 
Go to UniProtKB:  P00918
NIH Common Fund Data Resources
PHAROS  P00918
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
S8A
Query on S8A

Download CCD File 
A
(1,1-dioxido-3-oxo-1,2-benzothiazol-2(3H)-yl)acetic acid
C9 H7 N O5 S
MQAZHTHFEBUHCD-UHFFFAOYSA-N
 Ligand Interaction
GOL
Query on GOL

Download CCD File 
A
GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
ZN
Query on ZN

Download CCD File 
A
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
S8AKi:  78000   nM  Binding MOAD
S8AKi:  50000   nM  BindingDB
S8AKi:  78000   nM  BindingDB
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.55 Å
  • R-Value Free: 0.186 
  • R-Value Work: 0.160 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 42.37α = 90
b = 41.07β = 104.23
c = 72.06γ = 90
Software Package:
Software NamePurpose
CrystalCleardata reduction
HKL-2000data scaling
CNSphasing
CNSrefinement

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2015-11-11
    Type: Initial release
  • Version 1.1: 2016-01-27
    Changes: Database references