3KMY

Structure of BACE bound to SCH12472

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.229 
  • R-Value Work: 0.198 
  • R-Value Observed: 0.198 

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Ligand Structure Quality Assessment 


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:  
    3KMX, 3KMY, 3KN0

  • 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 functional assay, resulting in the identification of an isothiourea hit with a K(d) of 15 microM for BACE-1 ...

    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: 
(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Beta-secretase 1A, B395Homo sapiensMutation(s): 0 
Gene Names: BACE, BACE1, KIAA1149
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
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP56817
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
D8Y
Query on D8Y
Download Ideal Coordinates CCD File 
C [auth A],
D [auth B]		3-[2-(3-chlorophenyl)ethyl]pyridin-2-amine
C13 H13 Cl N2
XJCJGDOLNLEZIY-UHFFFAOYSA-N		 Ligand Interaction
Binding Affinity Annotations 
IDSourceBinding Affinity
D8Y Binding MOAD:  3KMY Kd: 3.20e+4 (nM) from 1 assay(s)
PDBBind:  3KMY Kd: 3.20e+4 (nM) from 1 assay(s)
BindingDB:  3KMY Kd: 32 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.229 
  • R-Value Work: 0.198 
  • R-Value Observed: 0.198 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 86.404α = 90
b = 89.294β = 90
c = 131.067γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
CNSrefinement
PDB_EXTRACTdata extraction
CrystalCleardata collection
CNXphasing
CNXrefinement

Structure Validation

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Ligand Structure Quality Assessment 


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Entry History 

Deposition Data

Revision History  (Full details and data files)

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