2F3E

Crystal Structure of the Bace complex with AXQ093, a macrocyclic inhibitor


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.11 Å
  • R-Value Free: 0.237 
  • R-Value Work: 0.206 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Structure-based design and synthesis of macroheterocyclic peptidomimetic inhibitors of the aspartic protease beta-site amyloid precursor protein cleaving enzyme (BACE).

Hanessian, S.Yang, G.Rondeau, J.-M.Neumann, U.Betschart, C.Tintelnot-Blomley, M.

(2006) J.Med.Chem. 49: 4544-4567

  • DOI: 10.1021/jm060154a
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Based on the X-ray cocrystal structure of the Tang-Ghosh heptapeptide inhibitor 1 (OM00-3), a series of macroheterocyclic analogues were designed and synthesized. Analogues containing dithia, dioxa, oxathia, and carbathia macrocycles were synthesized ...

    Based on the X-ray cocrystal structure of the Tang-Ghosh heptapeptide inhibitor 1 (OM00-3), a series of macroheterocyclic analogues were designed and synthesized. Analogues containing dithia, dioxa, oxathia, and carbathia macrocycles were synthesized by methods relying on ring-closing olefin metathesis for the dioxa analogues and by alkylation of thiolates or bisthiolates for the others. Molecular modeling suggested that the incorporation of piperidine units appended to the macrocycles improved interactions through additional H-bonds and introduced further rigidity. These were synthesized in enantiomerically pure form using enzyme-catalyzed desymmetrization and diastereomer separation. Inhibitory activity on beta-site amyloid precursor protein cleaving enzyme (BACE) was observed with several macroheterocyclic inhibitors and structure-activity relationship (SAR) correlations were deduced. Cocrystal structures of two synthetic analogues revealed interesting and unexpected binding interactions.


    Organizational Affiliation

    Department of Chemistry, Université de Montréal, C. P. 6128, Station Centre-ville, Montréal, Quebec H3C 3J7, Canada. stephen.hanessian@umontreal.ca




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Beta-secretase 1
A, B, C
402Homo 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
AXQ
Query on AXQ

Download SDF File 
Download CCD File 
A, B, C
{(E)-(3R,6S,9R)-3-[(1S,3R)-3-((S)-1 -BUTYLCARBAMOYL-2-METHYL-PROPYLCARB AMOYL)-1-HYDROXY-BUTYL]-6-METHYL-5, 8-DIOXO-1,11-DITHIA-4,7-DIAZA-CYCLO PENTADEC-13-EN-9-YL}-CARBAMIC ACID TERT-BUTYL ESTER
C31 H55 N5 O7 S2
YFVXRNZNJJXEKV-DYASFXQMSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
AXQIC50: 156 nM (100) BINDINGDB
AXQIC50: 156 nM BINDINGMOAD
AXQIC50: 156 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.11 Å
  • R-Value Free: 0.237 
  • R-Value Work: 0.206 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 82.244α = 90.00
b = 103.781β = 103.04
c = 100.961γ = 90.00
Software Package:
Software NamePurpose
CNXphasing
PDB_EXTRACTdata extraction
CNXrefinement
SCALEPACKdata scaling
DENZOdata reduction
CNSrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2005-11-21 
  • Released Date: 2006-09-05 
  • Deposition Author(s): Rondeau, J.-M.

Revision History 

  • Version 1.0: 2006-09-05
    Type: Initial release
  • Version 1.1: 2008-05-01
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2017-10-18
    Type: Refinement description