5UYU | pdb_00005uyu

Crystal structure of BACE1 in complex with 2-aminooxazoline-3-azaxanthene compound 12


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 
    0.228 (Depositor), 0.230 (DCC) 
  • R-Value Work: 
    0.205 (Depositor), 0.210 (DCC) 
  • R-Value Observed: 
    0.206 (Depositor) 

Starting Model: experimental
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wwPDB Validation   3D Report Full Report


Ligand Structure Quality Assessment 

Created with Raphaël 2.3.0Worse 01 BetterLigand structure goodness of fit to experimental dataBest fitted 8QVClick on this verticalbar to view details

This is version 1.4 of the entry. See complete history


Literature

Development of 2-aminooxazoline 3-azaxanthene beta-amyloid cleaving enzyme (BACE) inhibitors with improved selectivity against Cathepsin D.

Low, J.D.Bartberger, M.D.Chen, K.Cheng, Y.Fielden, M.R.Gore, V.Hickman, D.Liu, Q.Allen Sickmier, E.Vargas, H.M.Werner, J.White, R.D.Whittington, D.A.Wood, S.Minatti, A.E.

(2017) Medchemcomm 8: 1196-1206

  • DOI: https://doi.org/10.1039/c7md00106a
  • Primary Citation of Related Structures:  
    5UX4, 5UYU

  • PubMed Abstract: 

    As part of an ongoing effort at Amgen to develop a disease-modifying therapy for Alzheimer's disease, we have previously used the aminooxazoline xanthene (AOX) scaffold to generate potent and orally efficacious BACE1 inhibitors. While AOX-BACE1 inhibitors demonstrated acceptable cardiovascular safety margins, a retinal pathological finding in rat toxicological studies demanded further investigation. It has been widely postulated that such retinal toxicity might be related to off-target inhibition of Cathepsin D (CatD), a closely related aspartyl protease. We report the development of AOX-BACE1 inhibitors with improved selectivity against CatD by following a structure- and property-based approach. Our efforts culminated in the discovery of a picolinamide-substituted 3-aza-AOX-BACE1 inhibitor absent of retinal effects in an early screening rat toxicology study.


  • Organizational Affiliation

    Department of Medicinal Chemistry , Amgen Inc. , One Amgen Center Drive , Thousand Oaks , CA 91320 , USA . Email: aminatti@amgen.com ; Tel: +1 805 447 4721.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Beta-secretase 1411Homo sapiensMutation(s): 2 
Gene Names: BACE1BACEKIAA1149
EC: 3.4.23.46
UniProt & NIH Common Fund Data Resources
Find proteins for P56817 (Homo sapiens)
Explore P56817 
Go to UniProtKB:  P56817
PHAROS:  P56817
GTEx:  ENSG00000186318 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP56817
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 3 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
8QV
Query on 8QV

Download Ideal Coordinates CCD File 
G [auth A](5S)-3-(3,6-dihydro-2H-pyran-4-yl)-7-[5-(prop-1-yn-1-yl)pyridin-3-yl]-5'H-spiro[1-benzopyrano[2,3-c]pyridine-5,4'-[1,3]oxazol]-2'-amine
C27 H22 N4 O3
PAMPHNBKOPBUKU-MHZLTWQESA-N
IOD
Query on IOD

Download Ideal Coordinates CCD File 
B [auth A],
C [auth A],
D [auth A],
E [auth A],
F [auth A]
IODIDE ION
I
XMBWDFGMSWQBCA-UHFFFAOYSA-M
GOL
Query on GOL

Download Ideal Coordinates CCD File 
H [auth A]GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free:  0.228 (Depositor), 0.230 (DCC) 
  • R-Value Work:  0.205 (Depositor), 0.210 (DCC) 
  • R-Value Observed: 0.206 (Depositor) 
Space Group: P 61 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 102.287α = 90
b = 102.287β = 90
c = 170.374γ = 120
Software Package:
Software NamePurpose
HKL-2000data scaling
REFMACrefinement
PDB_EXTRACTdata extraction
HKL-2000data reduction
AMoREphasing
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

View Full Validation Report



Ligand Structure Quality Assessment 

Created with Raphaël 2.3.0Worse 01 BetterLigand structure goodness of fit to experimental dataBest fitted 8QVClick on this verticalbar to view details

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2017-05-17
    Type: Initial release
  • Version 1.1: 2017-11-22
    Changes: Refinement description
  • Version 1.2: 2018-08-29
    Changes: Data collection, Database references, Derived calculations
  • Version 1.3: 2023-10-04
    Changes: Data collection, Database references, Refinement description
  • Version 1.4: 2024-11-13
    Changes: Structure summary