3INE

Bace1 with the aminohydantoin Compound S-34


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.276 
  • R-Value Work: 0.219 
  • R-Value Observed: 0.222 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Design and synthesis of 5,5'-disubstituted aminohydantoins as potent and selective human beta-secretase (BACE1) inhibitors.

Malamas, M.S.Erdei, J.Gunawan, I.Turner, J.Hu, Y.Wagner, E.Fan, K.Chopra, R.Olland, A.Bard, J.Jacobsen, S.Magolda, R.L.Pangalos, M.Robichaud, A.J.

(2010) J Med Chem 53: 1146-1158

  • DOI: 10.1021/jm901414e
  • Primary Citation of Related Structures:  
    3INH, 3IND, 3INE, 3INF

  • PubMed Abstract: 
  • The identification of small molecule aminohydantoins as potent and selective human beta-secretase inhibitors is reported. These analogues exhibit low nannomolar potency for BACE1, show comparable activity in a cell-based (ELISA) assay, and demonstrat ...

    The identification of small molecule aminohydantoins as potent and selective human beta-secretase inhibitors is reported. These analogues exhibit low nannomolar potency for BACE1, show comparable activity in a cell-based (ELISA) assay, and demonstrate >100x selectivity for the other structurally related aspartyl proteases BACE2, cathepsinD, renin, and pepsin. On the basis of the cocrystal structure of the HTS-hit 2 in the BACE1 active site and by use of a structure-based drug design approach, we methodically explored the comparatively large binding pocket of the BACE1 enzyme and identified key interactions between the ligand and the protein that contributed to the affinity. One of the more potent compounds, (S)-55, displayed an IC(50) value for BACE1 of 10 nM and exhibited comparable cellular activity (EC(50) = 20 nM) in the ELISA assay. Acute oral administration of (S)-55 at 100 mg/kg resulted in a 69% reduction of plasma A beta(40) at 8 h in a Tg2576 mouse (p < 0.001).


    Organizational Affiliation

    Department of Chemical Sciences, Wyeth Research, CN 8000, Princeton, New Jersey 08543-8000, USA. malamam@wyeth.com



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Beta-secretase 1A415Homo sapiensMutation(s): 0 
Gene Names: BACE1BACEKIAA1149
EC: 3.4.23.46
Find proteins for P56817 (Homo sapiens)
Explore P56817 
Go to UniProtKB:  P56817
NIH Common Fund Data Resources
PHAROS  P56817
Protein Feature View
Expand
 ( Mouse scroll to zoom / Hold left click to move )
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
X17
Query on X17

Download CCD File 
A
(5S)-2-amino-5-(4-methoxy-3-methylphenyl)-3-methyl-5-[(3S,5S,7S)-tricyclo[3.3.1.1~3,7~]dec-1-yl]-3,5-dihydro-4H-imidazol-4-one
C22 H29 N3 O2
HZIOSWLCMNAEBB-HJBSZYCQSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
X17IC50:  270   nM  BindingDB
X17EC50:  230   nM  BindingDB
X17IC50 :  170   nM  PDBBind
X17IC50:  170   nM  BindingDB
X17EC50:  130   nM  BindingDB
X17IC50:  170   nM  Binding MOAD
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.276 
  • R-Value Work: 0.219 
  • R-Value Observed: 0.222 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 73.137α = 90
b = 104.33β = 94.69
c = 49.551γ = 90
Software Package:
Software NamePurpose
HKL-2000data collection
AMoREphasing
PHENIXrefinement
HKL-2000data reduction
SCALEPACKdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-03-02
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance