4E49

Nucleophile recognition as an alternative inhibition mode for benzoic acid based carbonic anhydrase inhibitors


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.45 Å
  • R-Value Free: 0.185 
  • R-Value Work: 0.158 
  • R-Value Observed: 0.160 

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Ligand Structure Quality Assessment 


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Literature

Nucleophile recognition as an alternative inhibition mode for benzoic acid based carbonic anhydrase inhibitors

Martin, D.P.Cohen, S.M.

(2012) Chem Commun (Camb) 48: 5259-5261

  • DOI: 10.1039/c2cc32013d
  • Primary Citation of Related Structures:  
    4E3D, 4E3F, 4E3G, 4E3H, 4E49, 4E4A

  • PubMed Abstract: 
  • A series of hydroxybenzoic acid derivatives have shown inhibitory activity against carbonic anhydrase (CA). X-ray crystallography shows that these molecules inhibit not by binding the active site metal ion but by strong hydrogen bonding to the metal-bound water nucleophile ...

    A series of hydroxybenzoic acid derivatives have shown inhibitory activity against carbonic anhydrase (CA). X-ray crystallography shows that these molecules inhibit not by binding the active site metal ion but by strong hydrogen bonding to the metal-bound water nucleophile. The binding mode observed for these molecules is distinct when compared to other non-metal-binding CA inhibitors.


    Organizational Affiliation

    Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093-0358, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Carbonic anhydrase 2A260Homo sapiensMutation(s): 0 
Gene Names: CA2
EC: 4.2.1.1
UniProt & NIH Common Fund Data Resources
Find proteins for P00918 (Homo sapiens)
Explore P00918 
Go to UniProtKB:  P00918
PHAROS:  P00918
Protein Feature View
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  • Reference Sequence
Small Molecules
Binding Affinity Annotations 
IDSourceBinding Affinity
RCO Binding MOAD:  4E49 Ki: 7700 (nM) from 1 assay(s)
BindingDB:  4E49 Ki: min: 7700, max: 9400 (nM) from 2 assay(s)
SO4 BindingDB:  4E49 Ki: min: 8.90e+7, max: 3.00e+8 (nM) from 4 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.45 Å
  • R-Value Free: 0.185 
  • R-Value Work: 0.158 
  • R-Value Observed: 0.160 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 42.179α = 90
b = 41.502β = 104.02
c = 71.824γ = 90
Software Package:
Software NamePurpose
APEXdata collection
PHASERphasing
REFMACrefinement
APEXdata reduction

Structure Validation

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Ligand Structure Quality Assessment  



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2012-06-27
    Type: Initial release