7B0Z

Crystal Structure of human monoamine oxidase B in complex with (E)-3-phenyl-1-(4-(trifluoromethyl)phenyl)prop-2-en-1-one

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free: 0.188 
  • R-Value Work: 0.161 
  • R-Value Observed: 0.163 

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Literature

Promising Non-cytotoxic Monosubstituted Chalcones to Target Monoamine Oxidase-B.

Iacovino, L.G., Pinzi, L., Facchetti, G., Bortolini, B., Christodoulou, M.S., Binda, C., Rastelli, G., Rimoldi, I., Passarella, D., Di Paolo, M.L., Dalla Via, L.

(2021) ACS Med Chem Lett 12: 1151-1158

  • DOI: 10.1021/acsmedchemlett.1c00238
  • Primary Citation of Related Structures:  
    7B0V, 7B0Z

  • PubMed Abstract: 

    • A library of monosubstituted chalcones ( 1 - 17 ) bearing electron-donating and electron-withdrawing groups on both aromatic rings were selected. The cell viability on human tumor cell lines was evaluated first. The compounds unable to induce detectable cytotoxicity ( 1 , 13 , and 14 ) were tested using the monoamine oxidase (MAO) activity assay ...

    A library of monosubstituted chalcones ( 1 - 17 ) bearing electron-donating and electron-withdrawing groups on both aromatic rings were selected. The cell viability on human tumor cell lines was evaluated first. The compounds unable to induce detectable cytotoxicity ( 1 , 13 , and 14 ) were tested using the monoamine oxidase (MAO) activity assay. Interestingly, they inhibit MAO-B, acting as competitive inhibitors, with 13 and 14 showing the best profiles. In particular, 13 exhibited a potency higher than that of safinamide, taken as a reference. Docking studies and crystallographic analysis showed that in human MAO-B 13 binds with the halogen-substituted aromatic ring in the entrance cavity, similar to safinamide, whereas 14 is accommodated in the opposite way. The main conclusion of this cell biology, biochemistry, and structural study is to highlights 13 as a chalcone derivative that is worth consideration for the development of novel MAO-B-selective inhibitors for the treatment of neurodegenerative diseases.

    Organizational Affiliation: 

    Dipartimento di Scienze del Farmaco, Università degli Studi di Padova, Padova 35131, Italy.



Macromolecules
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(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Amine oxidase [flavin-containing] BA, B520Homo sapiensMutation(s): 0 
Gene Names: MAOB
EC: 1.4.3.4
UniProt & NIH Common Fund Data Resources
Find proteins for P27338 (Homo sapiens)
Explore P27338 
Go to UniProtKB:  P27338
PHAROS:  P27338
GTEx:  ENSG00000069535 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP27338
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
FAD
Query on FAD
Download Ideal Coordinates CCD File 
C [auth A],
G [auth B]		FLAVIN-ADENINE DINUCLEOTIDE
C27 H33 N9 O15 P2
VWWQXMAJTJZDQX-UYBVJOGSSA-N		 Ligand Interaction
C15
Query on C15
Download Ideal Coordinates CCD File 
E [auth A],
I [auth B]		N-DODECYL-N,N-DIMETHYL-3-AMMONIO-1-PROPANESULFONATE
C17 H38 N O3 S
IZWSFJTYBVKZNK-UHFFFAOYSA-O		 Ligand Interaction
SK5 (Subject of Investigation/LOI)
Query on SK5
Download Ideal Coordinates CCD File 
D [auth A],
H [auth B]		(E)-3-phenyl-1-(4-(trifluoromethyl)phenyl)prop-2-en-1-one
C16 H11 F3 O
KXJRYNOBBVODML-IZZDOVSWSA-N		 Ligand Interaction
GOL
Query on GOL
Download Ideal Coordinates CCD File 
F [auth A],
J [auth B]		GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N		 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free: 0.188 
  • R-Value Work: 0.161 
  • R-Value Observed: 0.163 
  • Space Group: C 2 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 131.383α = 90
b = 221.961β = 90
c = 86.109γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
PDB_EXTRACTdata extraction
XDSdata reduction
Aimlessdata scaling
MOLREPphasing

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: 2021-11-03
    Type: Initial release