2OHU

X-ray crystal structure of beta secretase complexed with compound 8b

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.35 Å
  • R-Value Free: 0.248 
  • R-Value Work: 0.195 
  • R-Value Observed: 0.198 

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Ligand Structure Quality Assessment 


This is version 1.4 of the entry. See complete history. 


Literature

Application of fragment screening by X-ray crystallography to the discovery of aminopyridines as inhibitors of beta-secretase.

Congreve, M., Aharony, D., Albert, J., Callaghan, O., Campbell, J., Carr, R.A., Chessari, G., Cowan, S., Edwards, P.D., Frederickson, M., McMenamin, R., Murray, C.W., Patel, S., Wallis, N.

(2007) J Med Chem 50: 1124-1132

  • DOI: 10.1021/jm061197u
  • Primary Citation of Related Structures:  
    2OHP, 2OHQ, 2OHR, 2OHS, 2OHT, 2OHU

  • PubMed Abstract: 

    • Fragment-based lead discovery has been successfully applied to the aspartyl protease enzyme beta-secretase (BACE-1). Fragment hits that contained an aminopyridine motif binding to the two catalytic aspartic acid residues in the active site of the enzyme were the chemical starting points ...

    Fragment-based lead discovery has been successfully applied to the aspartyl protease enzyme beta-secretase (BACE-1). Fragment hits that contained an aminopyridine motif binding to the two catalytic aspartic acid residues in the active site of the enzyme were the chemical starting points. Structure-based design approaches have led to identification of low micromolar lead compounds that retain these interactions and additionally occupy adjacent hydrophobic pockets of the active site. These leads form two subseries, for which compounds 4 (IC50 = 25 microM) and 6c (IC50 = 24 microM) are representative. In the latter series, further optimization has led to 8a (IC50 = 690 nM).

    Organizational Affiliation: 

    Astex Therapeutics Ltd., 436 Cambridge Science Park, Milton Road, Cambridge CB4 0QA, United Kingdom. m.congreve@astex-therapeutics.com



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Beta-secretase 1A402Homo sapiensMutation(s): 2 
Gene Names: BACE1, BACE, 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
GTEx:  ENSG00000186318
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
IP7 (Subject of Investigation/LOI)
Query on IP7
Download Ideal Coordinates CCD File 
F [auth A]N~3~-[5-(1H-INDOL-6-YL)-2-(PYRIDIN-2-YLMETHOXY)BENZYL]PYRIDINE-2,3-DIAMINE
C26 H23 N5 O
KMBPJSHPAXOXBT-UHFFFAOYSA-N		 Ligand Interaction
IOD
Query on IOD
Download Ideal Coordinates CCD File 
B [auth A], C [auth A], D [auth A]IODIDE ION
I
XMBWDFGMSWQBCA-UHFFFAOYSA-M		 Ligand Interaction
DMS
Query on DMS
Download Ideal Coordinates CCD File 
E [auth A]DIMETHYL SULFOXIDE
C2 H6 O S
IAZDPXIOMUYVGZ-UHFFFAOYSA-N		 Ligand Interaction
Binding Affinity Annotations 
IDSourceBinding Affinity
IP7 BindingDB:  2OHU IC50: 4200 (nM) from 1 assay(s)
Binding MOAD:  2OHU IC50: 4200 (nM) from 1 assay(s)
PDBBind:  2OHU IC50: 4200 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.35 Å
  • R-Value Free: 0.248 
  • R-Value Work: 0.195 
  • R-Value Observed: 0.198 
  • Space Group: P 61 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 102.162α = 90
b = 102.162β = 90
c = 168.385γ = 120
Software Package:
Software NamePurpose
REFMACrefinement
PDB_EXTRACTdata extraction
CrystalCleardata collection
MOSFLMdata reduction
CCP4data scaling
C-SEARCHphasing

Structure Validation

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Ligand Structure Quality Assessment  


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Entry History 

Deposition Data

  • Deposited Date: 2007-01-10 
  • Released Date: 2007-03-13 
    • Deposition Author(s): Patel, S.

Revision History  (Full details and data files)

  • Version 1.0: 2007-03-13
    Type: Initial release
  • Version 1.1: 2008-05-01
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2017-10-18
    Changes: Advisory, Refinement description
  • Version 1.4: 2021-10-20
    Changes: Advisory, Database references, Derived calculations