3OOZ

Bace1 in complex with the aminohydantoin Compound 102


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.253 
  • R-Value Work: 0.215 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Design and Synthesis of Aminohydantoins as Potent and Selective Human beta-Secretase (BACE1) Inhibitors with Enhanced Brain Permeability

Malamas, M.S.Robichaud, A.Erdei, J.Quagliato, D.Solvibile, W.Zhou, P.Morris, K.Turner, J.Wagner, E.Fan, K.Olland, A.Jacobsen, S.Reinhart, P.Riddell, D.Pangalos, M.

(2010) Bioorg.Med.Chem.Lett. 20: 6597-6605

  • DOI: 10.1016/j.bmcl.2010.09.029

  • PubMed Abstract: 
  • The identification of small molecule aminohydantoins as potent and selective human β-secretase inhibitors is reported. These analogs exhibit good brain permeability (40-70%), low nanomolar potency for BACE1, and demonstrate >100-fold selectivity for ...

    The identification of small molecule aminohydantoins as potent and selective human β-secretase inhibitors is reported. These analogs exhibit good brain permeability (40-70%), low nanomolar potency for BACE1, and demonstrate >100-fold selectivity for the structurally related aspartyl proteases cathepsin D, renin and pepsin. Alkyl and alkoxy groups at the meta-position of the P1 phenyl, which extend toward the S3 region of the enzyme, have contributed to the ligand's reduced affinity for the efflux transporter protein P-gp, and decreased topological polar surface area, thus resulting in enhanced brain permeability. A fluorine substitution at the para-position of the P1 phenyl has contributed to 100-fold decrease of CYP3A4 inhibition and enhancement of compound metabolic stability. The plasma and brain protein binding properties of these new analogs are affected by substitutions at the P1 phenyl moiety. Higher compound protein binding was observed in the brain than in the plasma. Two structurally diverse potent BACE1 inhibitors (84 and 89) reduced 30% plasma Aβ40 in the Tg2576 mice in vivo model at 30 mg/kg p.o..


    Organizational Affiliation

    Department of Chemical Sciences, Pfizer, CN 8000, Princeton, NJ 08543-8000, USA. malamas.michael@gmail.com




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Beta-secretase 1
A
415Homo sapiensMutation(s): 0 
Gene Names: BACE1 (BACE, KIAA1149)
EC: 3.4.23.46
Find proteins for P56817 (Homo sapiens)
Go to Gene View: BACE1
Go to UniProtKB:  P56817
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZOO
Query on ZOO

Download SDF File 
Download CCD File 
A
(5R)-2-amino-5-[4-(difluoromethoxy)phenyl]-5-[4-fluoro-3-(5-fluoropent-1-yn-1-yl)phenyl]-3-methyl-3,5-dihydro-4H-imidazol-4-one
C22 H19 F4 N3 O2
ZSIZOKHLIKKQIV-JOCHJYFZSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
ZOOIC50: 32 nM (100) BINDINGDB
ZOOIC50: 14 nM BINDINGMOAD
ZOOIC50: 14 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.253 
  • R-Value Work: 0.215 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 72.927α = 90.00
b = 104.664β = 94.91
c = 50.540γ = 90.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
HKL-2000data collection
PHASERphasing
HKL-2000data reduction
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2010-08-31 
  • Released Date: 2011-08-31 
  • Deposition Author(s): Olland, A.M.

Revision History 

  • Version 1.0: 2011-08-31
    Type: Initial release