3KMX

Structure of BACE bound to SCH346572


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.197 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Application of Fragment-Based NMR Screening, X-ray Crystallography, Structure-Based Design, and Focused Chemical Library Design to Identify Novel muM Leads for the Development of nM BACE-1 (beta-Site APP Cleaving Enzyme 1) Inhibitors.

Wang, Y.S.Strickland, C.Voigt, J.H.Kennedy, M.E.Beyer, B.M.Senior, M.M.Smith, E.M.Nechuta, T.L.Madison, V.S.Czarniecki, M.McKittrick, B.A.Stamford, A.W.Parker, E.M.Hunter, J.C.Greenlee, W.J.Wyss, D.F.

(2010) J.Med.Chem. 53: 942-950

  • DOI: 10.1021/jm901472u
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Fragment-based NMR screening, X-ray crystallography, structure-based design, and focused chemical library design were used to identify novel inhibitors for BACE-1. A rapid optimization of an initial NMR hit was achieved by a combination of NMR and a ...

    Fragment-based NMR screening, X-ray crystallography, structure-based design, and focused chemical library design were used to identify novel inhibitors for BACE-1. A rapid optimization of an initial NMR hit was achieved by a combination of NMR and a functional assay, resulting in the identification of an isothiourea hit with a K(d) of 15 microM for BACE-1. NMR data and the crystal structure revealed that this hit makes H-bond interactions with the two catalytic aspartates, occupies the nonprime side region of the active site of BACE-1, and extends toward the S3 subpocket (S3sp). A focused NMR-based search for heterocyclic isothiourea isosteres resulted in several distinct classes of BACE-1 active site directed compounds with improved chemical stability and physicochemical properties. The strategy for optimization of the 2-aminopyridine lead series to potent inhibitors of BACE-1 was demonstrated. The structure-based design of a cyclic acylguanidine lead series and its optimization into nanomolar BACE-1 inhibitors are the subject of the companion paper


    Organizational Affiliation

    Schering-Plough Research Institute, 320 Bent Street, Cambridge, Massachusetts 02141, USA. allen.yu-sen.wang@spcorp.com




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Beta-secretase 1
A, B
395Homo 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
G00
Query on G00

Download SDF File 
Download CCD File 
A, B
4-butoxy-3-chlorobenzyl imidothiocarbamate
C12 H17 Cl N2 O S
IONZMLSFEITLRK-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
G00IC50: 200 - 210 nM (100) BINDINGDB
G00Kd: 15 nM (100) BINDINGDB
G00Kd: 15000 nM BINDINGMOAD
G00Kd: 15000 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.197 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 86.395α = 90.00
b = 89.335β = 90.00
c = 131.218γ = 90.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
CNSrefinement
CNXrefinement
CNXphasing
PDB_EXTRACTdata extraction
DENZOdata reduction
CrystalCleardata collection

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-01-19
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance
  • Version 1.2: 2017-11-01
    Type: Refinement description