Biological Assembly 1  

 3D View: Structure | 1D-3D View | Electron Density | Validation Report | Ligand Interaction

Global Symmetry: Cyclic - C2  (3D View)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors and generated by PQS (software)

Macromolecule Content

• Total Structure Weight: 120.27 kDa 
• Atom Count: 8528 
• Modelled Residue Count: 993 
• Deposited Residue Count: 1040 
• Unique protein chains: 1

2VZ2

Human MAO B in complex with mofegiline

• PDB DOI: 10.2210/pdb2VZ2/pdb

• Classification: OXIDOREDUCTASE
• Organism(s): Homo sapiens
• Expression System: Komagataella pastoris
• Mutation(s): No 


• Deposited: 2008-07-29 Released: 2008-12-16 
• Deposition Author(s): Bonivento, D., Mattevi, A.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.30 Å
• R-Value Free: 0.229 
• R-Value Work: 0.187 
• R-Value Observed: 0.188 

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

• PubMed: 19053775 
• DOI: 10.1021/jm8011867
• Primary Citation of Related Structures:  
  2VZ2


• 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 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.

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Organizational Affiliation: 

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

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
AMINE OXIDASE [FLAVIN-CONTAINING] B	A, B	520	Homo sapiens	Mutation(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

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
FAD	C [auth A], F [auth B]	FLAVIN-ADENINE DINUCLEOTIDE C27 H33 N9 O15 P2 VWWQXMAJTJZDQX-UYBVJOGSSA-N
C15	E [auth A], H [auth B]	N-DODECYL-N,N-DIMETHYL-3-AMMONIO-1-PROPANESULFONATE C17 H38 N O3 S IZWSFJTYBVKZNK-UHFFFAOYSA-O
MFG	D [auth A], G [auth B]	(1Z)-4-(4-FLUOROPHENYL)-2-METHYLIDENEBUTAN-1-IMINE C11 H12 F N CFVUPEQWSFCCFT-MDWZMJQESA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.30 Å
• R-Value Free: 0.229 
• R-Value Work: 0.187 
• R-Value Observed: 0.188 
• Space Group: C 2 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 132.026	α = 90
b = 223.73	β = 90
c = 86.629	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction
SCALA	data scaling
CCP4	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2008-07-29 
• Released Date: 2008-12-16 
Deposition Author(s): Bonivento, D., Mattevi, A.

Revision History  

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