5AMD

Three dimensional structure of human carbonic anhydrase II in complex with 2-((2-Phenylethyl)sulfamoyl)-4-sulfamoylbenzoic acid

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.50 Å
  • R-Value Free: 0.198 
  • R-Value Work: 0.161 
  • R-Value Observed: 0.163 

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Ligand Structure Quality Assessment 


This is version 1.4 of the entry. See complete history. 


Literature

X-Ray Crystallography-Promoted Drug Design of Carbonic Anhydrase Inhibitors.

Ivanova, J., Leitans, J., Tanc, M., Kazaks, A., Zalubovskis, R., Supuran, C.T., Tars, K.

(2015) Chem Commun (Camb) 51: 7108

  • DOI: 10.1039/c5cc01854d
  • Primary Citation of Related Structures:  
    5AMD, 5AMG, 5AML

  • PubMed Abstract: 

    • 1-N-Alkylated-6-sulfamoyl saccharin derivatives were prepared and assayed as carbonic anhydrase inhibitors (CAIs). During X-ray crystallographic experiments an unexpected hydrolysis of the isothiazole ring was evidenced which allowed us to prepare highly potent enzyme inhibitors with selectivity for some isoforms with medical applications ...

    1-N-Alkylated-6-sulfamoyl saccharin derivatives were prepared and assayed as carbonic anhydrase inhibitors (CAIs). During X-ray crystallographic experiments an unexpected hydrolysis of the isothiazole ring was evidenced which allowed us to prepare highly potent enzyme inhibitors with selectivity for some isoforms with medical applications.

    Organizational Affiliation: 

    Latvian Institute of Organic Synthesis, Aizkraukles 21, LV-1006 Riga, Latvia. raivis@osi.lv.



Macromolecules
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(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
CARBONIC ANHYDRASE 2A259Homo sapiensMutation(s): 0 
Gene Names: CA2
EC: 4.2.1.1 (PDB Primary Data), 4.2.1.69 (UniProt)
UniProt & NIH Common Fund Data Resources
Find proteins for P00918 (Homo sapiens)
Explore P00918 
Go to UniProtKB:  P00918
PHAROS:  P00918
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP00918
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
45I
Query on 45I
Download Ideal Coordinates CCD File 
C [auth A]2-[(2-PHENYLETHYL)SULFAMOYL]-4-SULFAMOYLBENZOIC ACID
C15 H16 N2 O6 S2
UPBRYTJLOYELEW-UHFFFAOYSA-N		 Ligand Interaction
ZN
Query on ZN
Download Ideal Coordinates CCD File 
B [auth A]ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N		 Ligand Interaction
Binding Affinity Annotations 
IDSourceBinding Affinity
45I Binding MOAD:  5AMD Ki: 2.8 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.50 Å
  • R-Value Free: 0.198 
  • R-Value Work: 0.161 
  • R-Value Observed: 0.163 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 42.16α = 90
b = 41.53β = 104.47
c = 72.01γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling

Structure Validation

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Ligand Structure Quality Assessment 


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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2015-04-08
    Type: Initial release
  • Version 1.1: 2015-04-22
    Changes: Database references
  • Version 1.2: 2018-01-17
    Changes: Data collection
  • Version 1.3: 2019-01-30
    Changes: Data collection, Experimental preparation
  • Version 1.4: 2019-02-06
    Changes: Data collection, Experimental preparation