5LLO

Crystal structure of human carbonic anhydrase isozyme XII with 3-[(1S)-2,3-Dihydro-1H-inden-1-ylamino]-2,5,6-trifluoro-4-[(2-hy-droxyethyl)sulfonyl]benzenesulfonamide


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.6 Å
  • R-Value Free: 0.225 
  • R-Value Work: 0.185 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Crystal structure correlations with the intrinsic thermodynamics of human carbonic anhydrase inhibitor binding.

Smirnov, A.Zubriene, A.Manakova, E.Grazulis, S.Matulis, D.

(2018) PeerJ 6: e4412-e4412

  • DOI: 10.7717/peerj.4412
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The structure-thermodynamics correlation analysis was performed for a series of fluorine- and chlorine-substituted benzenesulfonamide inhibitors binding to several human carbonic anhydrase (CA) isoforms. The total of 24 crystal structures of 16 inhib ...

    The structure-thermodynamics correlation analysis was performed for a series of fluorine- and chlorine-substituted benzenesulfonamide inhibitors binding to several human carbonic anhydrase (CA) isoforms. The total of 24 crystal structures of 16 inhibitors bound to isoforms CA I, CA II, CA XII, and CA XIII provided the structural information of selective recognition between a compound and CA isoform. The binding thermodynamics of all structures was determined by the analysis of binding-linked protonation events, yielding the intrinsic parameters, i.e., the enthalpy, entropy, and Gibbs energy of binding. Inhibitor binding was compared within structurally similar pairs that differ by para- or meta -substituents enabling to obtain the contributing energies of ligand fragments. The pairs were divided into two groups. First, similar binders-the pairs that keep the same orientation of the benzene ring exhibited classical hydrophobic effect, a less exothermic enthalpy and a more favorable entropy upon addition of the hydrophobic fragments. Second, dissimilar binders-the pairs of binders that demonstrated altered positions of the benzene rings exhibited the non-classical hydrophobic effect, a more favorable enthalpy and variable entropy contribution. A deeper understanding of the energies contributing to the protein-ligand recognition should lead toward the eventual goal of rational drug design where chemical structures of ligands could be designed based on the target protein structure.


    Organizational Affiliation

    Department of Protein-DNA Interactions, Institute of Biotechnology, Vilnius University, Vilnius, Lithuania.,Department of Biothermodynamics and Drug Design, Institute of Biotechnology, Vilnius University, Vilnius, Lithuania.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Carbonic anhydrase 12
A, B, C, D
263Homo sapiensMutation(s): 0 
Gene Names: CA12
EC: 4.2.1.1
Find proteins for O43570 (Homo sapiens)
Go to Gene View: CA12
Go to UniProtKB:  O43570
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download SDF File 
Download CCD File 
A, B, C, D
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
EDO
Query on EDO

Download SDF File 
Download CCD File 
A, B, D
1,2-ETHANEDIOL
ETHYLENE GLYCOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
 Ligand Interaction
5EF
Query on 5EF

Download SDF File 
Download CCD File 
A, B, C, D
3-[(1S)-2,3-dihydro-1H-inden-1-ylamino]-2,5,6-trifluoro-4-[(2-hydroxyethyl)sulfonyl]benzenesulfonamide
C17 H17 F3 N2 O5 S2
WMOJSIMFSAOOLP-NSHDSACASA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.6 Å
  • R-Value Free: 0.225 
  • R-Value Work: 0.185 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 77.291α = 90.00
b = 74.111β = 108.95
c = 91.585γ = 90.00
Software Package:
Software NamePurpose
SCALAdata scaling
MOLREPphasing
XDSdata reduction
REFMACrefinement
PDB_EXTRACTdata extraction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2017-08-16
    Type: Initial release
  • Version 1.1: 2018-05-16
    Type: Data collection, Database references