6H14

Crystal structure of TcACHE complexed to 1-(6-oxo-1,2,3,4,6,10b-hexahydropyrido[2,1-a]isoindol-10-yl)-3-(4-(1-(2-((1,2,3,4-tetrahydroacridin-9-yl)amino)ethyl)-1H-1,2,3-triazol-4-yl)pyridin-2-yl)urea


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.86 Å
  • R-Value Free: 0.211 
  • R-Value Work: 0.177 
  • R-Value Observed: 0.178 

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Ligand Structure Quality Assessment 


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Literature

Design, biological evaluation and X-ray crystallography of nanomolar multifunctional ligands targeting simultaneously acetylcholinesterase and glycogen synthase kinase-3.

Oukoloff, K.Coquelle, N.Bartolini, M.Naldi, M.Le Guevel, R.Bach, S.Josselin, B.Ruchaud, S.Catto, M.Pisani, L.Denora, N.Iacobazzi, R.M.Silman, I.Sussman, J.L.Buron, F.Colletier, J.P.Jean, L.Routier, S.Renard, P.Y.

(2019) Eur J Med Chem 168: 58-77

  • DOI: 10.1016/j.ejmech.2018.12.063
  • Primary Citation of Related Structures:  
    6H12, 6H14, 6H13

  • PubMed Abstract: 
  • Both cholinesterases (AChE and BChE) and kinases, such as GSK-3α/β, are associated with the pathology of Alzheimer's disease. Two scaffolds, targeting AChE (tacrine) and GSK-3α/β (valmerin) simultaneously, were assembled, using copper(I)-catalysed azide alkyne cycloaddition (CuAAC), to generate a new series of multifunctional ligands ...

    Both cholinesterases (AChE and BChE) and kinases, such as GSK-3α/β, are associated with the pathology of Alzheimer's disease. Two scaffolds, targeting AChE (tacrine) and GSK-3α/β (valmerin) simultaneously, were assembled, using copper(I)-catalysed azide alkyne cycloaddition (CuAAC), to generate a new series of multifunctional ligands. A series of eight multi-target directed ligands (MTDLs) was synthesized and evaluated in vitro and in cell cultures. Molecular docking studies, together with the crystal structures of three MTDL/TcAChE complexes, with three tacrine-valmerin hybrids allowed designing an appropriate linker containing a 1,2,3-triazole moiety whose incorporation preserved, and even increased, the original inhibitory potencies of the two selected pharmacophores toward the two targets. Most of the new derivatives exhibited nanomolar affinity for both targets, and the most potent compound of the series displayed inhibitory potencies of 9.5 nM for human acetylcholinesterase (hAChE) and 7 nM for GSK-3α/β. These novel dual MTDLs may serve as suitable leads for further development, since, in the micromolar range, they exhibited low cytotoxicity on a panel of representative human cell lines including the human neuroblastoma cell line SH-SY5Y. Moreover, these tacrine-valmerin hybrids displayed a good ability to penetrate the blood-brain barrier (BBB) without interacting with efflux pumps such as P-gp.


    Organizational Affiliation

    Normandie Univ, UNIROUEN, INSA Rouen, CNRS, COBRA (UMR 6014), 76000, Rouen, France. Electronic address: pierre-yves.renard@univ-rouen.fr.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
AcetylcholinesteraseA, B565Tetronarce californicaMutation(s): 0 
Gene Names: ache
EC: 3.1.1.7
UniProt
Find proteins for P04058 (Tetronarce californica)
Explore P04058 
Go to UniProtKB:  P04058
Protein Feature View
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  • Reference Sequence
Oligosaccharides

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Entity ID: 2
MoleculeChainsChain Length2D DiagramGlycosylation3D Interactions
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranoseC2N-Glycosylation Oligosaccharides Interaction
Glycosylation Resources
GlyTouCan:  G42666HT
GlyCosmos:  G42666HT
GlyGen:  G42666HT
Small Molecules
Ligands 9 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
FW8 (Subject of Investigation/LOI)
Query on FW8

Download Ideal Coordinates CCD File 
M [auth A], V [auth B]1-[(10~{b}~{S})-6-oxidanylidene-2,3,4,10~{b}-tetrahydro-1~{H}-pyrido[2,1-a]isoindol-10-yl]-3-[4-[1-[2-(1,2,3,4-tetrahydroacridin-9-ylamino)ethyl]-1,2,3-triazol-4-yl]pyridin-2-yl]urea
C35 H35 N9 O2
BNBWNJAILLASJW-PMERELPUSA-N
 Ligand Interaction
NAG (Subject of Investigation/LOI)
Query on NAG

Download Ideal Coordinates CCD File 
D [auth A], E [auth A], F [auth A], P [auth B], Q [auth B]2-acetamido-2-deoxy-beta-D-glucopyranose
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
MES
Query on MES

Download Ideal Coordinates CCD File 
Y [auth B]2-(N-MORPHOLINO)-ETHANESULFONIC ACID
C6 H13 N O4 S
SXGZJKUKBWWHRA-UHFFFAOYSA-N
 Ligand Interaction
PGE
Query on PGE

Download Ideal Coordinates CCD File 
N [auth A], X [auth B]TRIETHYLENE GLYCOL
C6 H14 O4
ZIBGPFATKBEMQZ-UHFFFAOYSA-N
 Ligand Interaction
PEG
Query on PEG

Download Ideal Coordinates CCD File 
I [auth A]DI(HYDROXYETHYL)ETHER
C4 H10 O3
MTHSVFCYNBDYFN-UHFFFAOYSA-N
 Ligand Interaction
SO4
Query on SO4

Download Ideal Coordinates CCD File 
O [auth A]SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
GOL
Query on GOL

Download Ideal Coordinates CCD File 
J [auth A], S [auth B]GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
EDO
Query on EDO

Download Ideal Coordinates CCD File 
G [auth A], H [auth A], K [auth A], L [auth A], R [auth B], T [auth B], U [auth B], Z [auth B]1,2-ETHANEDIOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
 Ligand Interaction
CL
Query on CL

Download Ideal Coordinates CCD File 
W [auth B]CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.86 Å
  • R-Value Free: 0.211 
  • R-Value Work: 0.177 
  • R-Value Observed: 0.178 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 91.591α = 90
b = 107.926β = 90
c = 150.698γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
XSCALEdata scaling
PHASERphasing

Structure Validation

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Ligand Structure Quality Assessment  



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
French National Research AgencyFranceANR-12-BS07-008-01

Revision History  (Full details and data files)

  • Version 1.0: 2019-05-15
    Type: Initial release
  • Version 2.0: 2019-10-09
    Changes: Atomic model, Data collection, Derived calculations
  • Version 3.0: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Atomic model, Data collection, Derived calculations, Structure summary