2VZ2

Human MAO B in complex with mofegiline


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.229 
  • R-Value Work: 0.187 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Structural and mechanistic studies of mofegiline inhibition of recombinant human monoamine oxidase B.

Milczek, E.M.Bonivento, D.Binda, C.Mattevi, A.McDonald, I.A.Edmondson, D.E.

(2008) J. Med. Chem. 51: 8019-8026

  • DOI: 10.1021/jm8011867

  • PubMed Abstract: 
  • Mechanistic and structural studies have been carried out to investigate the molecular basis for the irreversible inhibition of human MAO-B by mofegiline. Competitive inhibition with substrate shows an apparent K(i) of 28 nM. Irreversible inhibition o ...

    Mechanistic and structural studies have been carried out to investigate the molecular basis for the irreversible inhibition of human MAO-B by mofegiline. Competitive inhibition with substrate shows an apparent K(i) of 28 nM. Irreversible inhibition of MAO-B occurs with a 1:1 molar stoichiometry with no observable catalytic turnover. The absorption spectral properties of mofegiline inhibited MAO-B show features (lambda(max) approximately 450 nm) unlike those of traditional flavin N(5) or C(4a) adducts. Visible and near-UV circular dichroism spectra of the mofegiline-MAO-B adduct shows a negative peak at 340 nm with an intensity similar to that of N(5) flavocyanine adducts. The X-ray crystal structure of the mofegiline-MAO-B adduct shows a covalent bond between the flavin cofactor N(5) with the distal allylamine carbon atom as well as the absence of the fluorine atom. A mechanism to explain these structural and spectral data is proposed.


    Organizational Affiliation

    Department of Chemistry, Emory University, 1510 Clifton Road, Atlanta, Georgia 30322, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
AMINE OXIDASE [FLAVIN-CONTAINING] B
A, B
520Homo sapiensMutation(s): 0 
Gene Names: MAOB
EC: 1.4.3.4
Find proteins for P27338 (Homo sapiens)
Go to Gene View: MAOB
Go to UniProtKB:  P27338
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
FAD
Query on FAD

Download SDF File 
Download CCD File 
A, B
FLAVIN-ADENINE DINUCLEOTIDE
C27 H33 N9 O15 P2
VWWQXMAJTJZDQX-UYBVJOGSSA-N
 Ligand Interaction
MFG
Query on MFG

Download SDF File 
Download CCD File 
A, B
(1Z)-4-(4-FLUOROPHENYL)-2-METHYLIDENEBUTAN-1-IMINE
C11 H12 F N
CFVUPEQWSFCCFT-MDWZMJQESA-N
 Ligand Interaction
C15
Query on C15

Download SDF File 
Download CCD File 
A, B
N-DODECYL-N,N-DIMETHYL-3-AMMONIO-1-PROPANESULFONATE
C17 H38 N O3 S
IZWSFJTYBVKZNK-UHFFFAOYSA-O
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.229 
  • R-Value Work: 0.187 
  • Space Group: C 2 2 2
Unit Cell:
Length (Å)Angle (°)
a = 132.026α = 90.00
b = 223.730β = 90.00
c = 86.629γ = 90.00
Software Package:
Software NamePurpose
MOSFLMdata reduction
REFMACrefinement
CCP4phasing
SCALAdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2008-12-16
    Type: Initial release
  • Version 1.1: 2011-05-07
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2018-02-28
    Type: Database references, Structure summary