5ENM

Compound 10


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.98 Å
  • R-Value Free: 0.284 
  • R-Value Work: 0.255 
  • R-Value Observed: 0.256 

wwPDB Validation   3D Report Full Report



Literature

Targeting the BACE1 Active Site Flap Leads to a Potent Inhibitor That Elicits Robust Brain A beta Reduction in Rodents.

Wu, Y.J.Guernon, J.Yang, F.Snyder, L.Shi, J.Mcclure, A.Rajamani, R.Park, H.Ng, A.Lewis, H.Chang, C.Camac, D.Toyn, J.H.Ahlijanian, M.K.Albright, C.F.Macor, J.E.Thompson, L.A.

(2016) ACS Med Chem Lett 7: 271-276

  • DOI: 10.1021/acsmedchemlett.5b00432
  • Primary Citation of Related Structures:  
    5ENK, 5ENM

  • PubMed Abstract: 
  • By targeting the flap backbone of the BACE1 active site, we discovered 6-dimethylisoxazole-substituted biaryl aminothiazine 18 with 34-fold improved BACE1 inhibitory activity over the lead compound 1. The cocrystal structure of 18 bound to the active ...

    By targeting the flap backbone of the BACE1 active site, we discovered 6-dimethylisoxazole-substituted biaryl aminothiazine 18 with 34-fold improved BACE1 inhibitory activity over the lead compound 1. The cocrystal structure of 18 bound to the active site indicated two hydrogen-bond interactions between the dimethylisoxazole and threonine 72 and glutamine 73 of the flap. Incorporation of the dimethylisoxazole substitution onto the related aminothiazine carboxamide series led to pyrazine-carboxamide 26 as a very potent BACE1 inhibitor (IC50 < 1 nM). This compound demonstrated robust brain Aβ reduction in rat dose-response studies. Thus, compound 26 may be useful in testing the amyloid hypothesis of Alzheimer's disease.


    Organizational Affiliation

    Research and Development, Bristol-Myers Squibb Company , 5 Research Parkway, Wallingford, Connecticut 06492-7660, United States.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Beta-secretase 1A455Homo sapiensMutation(s): 0 
Gene Names: BACE1BACEKIAA1149
EC: 3.4.23.46
Find proteins for P56817 (Homo sapiens)
Explore P56817 
Go to UniProtKB:  P56817
NIH Common Fund Data Resources
PHAROS  P56817
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
5QU
Query on 5QU

Download Ideal Coordinates CCD File 
A
(2~{R},4~{S},6~{S})-4-[2,4-bis(fluoranyl)-5-pyrimidin-5-yl-phenyl]-6-(3,5-dimethyl-1,2-oxazol-4-yl)-1,3-thiazinan-2-amine
C19 H19 F2 N5 O S
QXXCXVMLHLDXDN-JENIJYKNSA-N
 Ligand Interaction
IOD
Query on IOD

Download Ideal Coordinates CCD File 
A
IODIDE ION
I
XMBWDFGMSWQBCA-UHFFFAOYSA-M
 Ligand Interaction
GOL
Query on GOL

Download Ideal Coordinates CCD File 
A
GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
5QUIC50:  70   nM  Binding MOAD
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.98 Å
  • R-Value Free: 0.284 
  • R-Value Work: 0.255 
  • R-Value Observed: 0.256 
  • Space Group: P 61 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 102.234α = 90
b = 102.234β = 90
c = 170.579γ = 120
Software Package:
Software NamePurpose
REFMACrefinement
HKL-2000data reduction
AutoPROCdata scaling
MOLREPphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

  • Deposited Date: 2015-11-09 
  • Released Date: 2016-10-05 
  • Deposition Author(s): Lewis, H.A.

Revision History 

  • Version 1.0: 2016-10-05
    Type: Initial release