6H9B

1,1-Diheterocyclic Ethylenes Derived from Quinaldine and Carbazole as New Tubulin Polymerization Inhibitors: Synthesis, Metabolism, and Biological Evaluation


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.75 Å
  • R-Value Free: 0.216 
  • R-Value Work: 0.172 
  • R-Value Observed: 0.174 

Starting Model: experimental
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Ligand Structure Quality Assessment 


This is version 1.2 of the entry. See complete history


Literature

1,1-Diheterocyclic Ethylenes Derived from Quinaldine and Carbazole as New Tubulin-Polymerization Inhibitors: Synthesis, Metabolism, and Biological Evaluation.

Naret, T.Khelifi, I.Provot, O.Bignon, J.Levaique, H.Dubois, J.Souce, M.Kasselouri, A.Deroussent, A.Paci, A.Varela, P.F.Gigant, B.Alami, M.Hamze, A.

(2019) J Med Chem 62: 1902-1916

  • DOI: https://doi.org/10.1021/acs.jmedchem.8b01386
  • Primary Citation of Related Structures:  
    6H9B

  • PubMed Abstract: 

    We report the synthesis and metabolic and biological evaluation of a series of 17 novel heterocyclic derivatives of isocombretastatin-A4 (iso-CA-4) and their structure-activity relationships. Among these derivatives, the most active compound, 4f, inhibited the growth of a panel of seven cancer cell lines with an IC 50 in the low nanomolar range. In addition, 4f showed interesting activity against CA-4-resistant colon-carcinoma cells and multidrug-resistant leukemia cells. It also induced G 2 /M cell-cycle arrest. Structural data indicated binding of 4f to the colchicine site of tubulin, likely preventing the curved-to-straight tubulin structural changes that occur during microtubule assembly. Also, 4f disrupted the blood-vessel-like assembly formed by human umbilical-vein endothelial cells in vitro, suggesting its function as a vascular-disrupting agent. An in vitro metabolism study of 4f showed its high human-microsomal stability in comparison with that of iso-CA-4. The physicochemical properties of 4f may be conducive to CNS permeability, suggesting that this compound may be a possible candidate for the treatment of glioblastoma.


  • Organizational Affiliation

    BioCIS, Université Paris-Sud, CNRS, Équipe Labellisée Ligue Contre le Cancer , Université Paris-Saclay , F-92290 Châtenay-Malabry , France.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Tubulin alpha chain
A, C
433Ovis ariesMutation(s): 0 
UniProt
Find proteins for D0VWZ0 (Ovis aries)
Explore D0VWZ0 
Go to UniProtKB:  D0VWZ0
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupD0VWZ0
Sequence Annotations
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  • Reference Sequence
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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Tubulin beta chain
B, D
431Ovis ariesMutation(s): 0 
UniProt
Find proteins for D0VWY9 (Ovis aries)
Explore D0VWY9 
Go to UniProtKB:  D0VWY9
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupD0VWY9
Sequence Annotations
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  • Reference Sequence
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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
Stathmin-4142Rattus norvegicusMutation(s): 2 
Gene Names: Stmn4
UniProt
Find proteins for P63043 (Rattus norvegicus)
Explore P63043 
Go to UniProtKB:  P63043
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP63043
Sequence Annotations
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  • Reference Sequence
Small Molecules
Ligands 5 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
GTP
Query on GTP

Download Ideal Coordinates CCD File 
H [auth A],
P [auth C]
GUANOSINE-5'-TRIPHOSPHATE
C10 H16 N5 O14 P3
XKMLYUALXHKNFT-UUOKFMHZSA-N
GDP
Query on GDP

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M [auth B],
V [auth D]
GUANOSINE-5'-DIPHOSPHATE
C10 H15 N5 O11 P2
QGWNDRXFNXRZMB-UUOKFMHZSA-N
FWH (Subject of Investigation/LOI)
Query on FWH

Download Ideal Coordinates CCD File 
N [auth B],
W [auth D]
9-methyl-3-[1-(2-methylquinolin-4-yl)ethenyl]carbazole
C25 H20 N2
QFMFGYHKBRNDLH-UHFFFAOYSA-N
SO4
Query on SO4

Download Ideal Coordinates CCD File 
F [auth A]
G [auth A]
J [auth B]
K [auth B]
L [auth B]
F [auth A],
G [auth A],
J [auth B],
K [auth B],
L [auth B],
O [auth C],
R [auth C],
S [auth D],
T [auth D],
U [auth D],
X [auth E]
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
MG
Query on MG

Download Ideal Coordinates CCD File 
I [auth A],
Q [auth C]
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.75 Å
  • R-Value Free: 0.216 
  • R-Value Work: 0.172 
  • R-Value Observed: 0.174 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 64.94α = 90
b = 128.48β = 90
c = 251.04γ = 90
Software Package:
Software NamePurpose
XDSdata reduction
PHENIXphasing
BUSTERrefinement

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2018-12-19
    Type: Initial release
  • Version 1.1: 2019-03-13
    Changes: Data collection, Database references
  • Version 1.2: 2024-01-17
    Changes: Data collection, Database references, Derived calculations, Refinement description