1NDW

Crystal Structure of Adenosine Deaminase Complexed with FR221647


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.206 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

A highly potent non-nucleoside adenosine deaminase inhibitor: efficient drug discovery by intentional lead hybridization

Terasaka, T.Kinoshita, T.Kuno, M.Nakanishi, I.

(2004) J Am Chem Soc 126: 34-35

  • DOI: 10.1021/ja038606l
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • We disclose herein the rapid discovery of the first highly potent (Ki = 7.7 nM) non-nucleoside adenosine deaminase (ADA) inhibitor based on the rational hybridization of two structurally distinct leads. Two micromolar inhibitors were discovered by a ...

    We disclose herein the rapid discovery of the first highly potent (Ki = 7.7 nM) non-nucleoside adenosine deaminase (ADA) inhibitor based on the rational hybridization of two structurally distinct leads. Two micromolar inhibitors were discovered by a parallel rational design and random screening program, and individual crystal structures of bovine ADA in complexation with these inhibitors revealed several unknown binding sites and distinct binding modes. Using this information as the starting point, highly effective lead hybridization was achieved in only two structure-based drug design iterations. The conceptual approach illustrated by this example promises to be broadly useful in the search for new chemical entities and can contribute greatly to improve the overall efficiency and speed of drug discovery.


    Organizational Affiliation

    Medicinal Chemistry Research Laboratories, Basic Research Laboratories, and Medicinal Biology Research Laboratories, Fujisawa Pharmaceutical Co., Ltd., 2-1-6, Kashima, Yodogawa-ku, Osaka 532-8514, Japan.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Adenosine DeaminaseA356Bos taurusMutation(s): 0 
Gene Names: ADA
EC: 3.5.4.4
Find proteins for P56658 (Bos taurus)
Explore P56658 
Go to UniProtKB:  P56658
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
FR2
Query on FR2

Download CCD File 
A
1-((1R)-1-(HYDROXYMETHYL)-3-PHENYLPROPYL)-1H-IMIDAZOLE-4-CARBOXAMIDE
C14 H17 N3 O2
ZUYUIKKHHBEVHL-GFCCVEGCSA-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 %)
FR2Ki:  5900   nM  Binding MOAD
FR2Ki :  5900   nM  PDBBind
FR2Ki:  5900000   nM  BindingDB
FR2Ki:  5900   nM  BindingDB
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.206 
  • Space Group: P 43 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 77.63α = 90
b = 77.63β = 90
c = 135.66γ = 90
Software Package:
Software NamePurpose
CNXrefinement

Structure Validation

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Entry History 

Deposition Data

  • Deposited Date: 2002-12-09 
  • Released Date: 2003-12-09 
  • Deposition Author(s): Kinoshita, T.

Revision History 

  • Version 1.0: 2003-12-09
    Type: Initial release
  • Version 1.1: 2008-04-28
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance