1SIH

AGAO in covalent complex with the inhibitor MOBA ("4-(4-methylphenoxy)-2-butyn-1-amine")


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.73 Å
  • R-Value Free: 0.168 
  • R-Value Work: 0.149 
  • R-Value Observed: 0.150 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Differential Inhibition of Six Copper Amine Oxidases by a Family of 4-(Aryloxy)-2-butynamines: Evidence for a New Mode of Inactivation.

O'Connell, K.M.Langley, D.B.Shepard, E.M.Duff, A.P.Jeon, H.B.Sun, G.Freeman, H.C.Guss, J.M.Sayre, L.M.Dooley, D.M.

(2004) Biochemistry 43: 10965-10978

  • DOI: https://doi.org/10.1021/bi0492004
  • Primary Citation of Related Structures:  
    1SIH, 1SII

  • PubMed Abstract: 

    A series of compounds derived from a previously identified substrate analogue of copper amine oxidases (CuAOs) (Shepard et al. (2002) Eur. J. Biochem. 269, 3645-3658) has been screened against six different CuAOs with a view to designing potent and selective inhibitors. The substrate analogues investigated were 4-(1-naphthyloxy)-2-butyn-1-amine, 4-(2-methylphenoxy)-2-butyn-1-amine, 4-(3-methylphenoxy)-2-butyn-1-amine, 4-(4-methylphenoxy)-2-butyn-1-amine, and 4-phenoxy-2-butyn-1-amine. These compounds were screened against equine plasma amine oxidase (EPAO), Pisum sativum amine oxidase (PSAO), Pichia pastoris lysyl oxidase (PPLO), bovine plasma amine oxidase (BPAO), human kidney diamine oxidase (KDAO), and Arthrobacter globiformis amine oxidase (AGAO) to examine the effect of different substituent groups on potency. Despite the similar structures of the 4-aryloxy analogues evaluated, striking differences in potency were observed. In addition, crystal structures of AGAO derivitized with 4-(2-naphthyloxy)-2-butyn-1-amine and 4-(4-methylphenoxy)-2-butyn-1-amine were obtained at a resolution of 1.7 A. The structures reveal a novel and unprecedented reaction mechanism involving covalent attachment of the alpha,beta-unsaturated aldehyde turnover product to the amino group of the reduced 2,4,5-trihydroxyphenylalanine quinone (TPQ) cofactor. Collectively, the structural and inhibition results support the feasibility of designing selective mechanism-based inhibitors of copper amine oxidases.


  • Organizational Affiliation

    Department of Chemistry and Biochemistry, Montana State University, Bozeman, Montana 59717, USA.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Phenylethylamine oxidase646Arthrobacter globiformisMutation(s): 1 
Gene Names: ATCC8010IFO12137
EC: 1.4.3.6
UniProt
Find proteins for P46881 (Arthrobacter globiformis)
Explore P46881 
Go to UniProtKB:  P46881
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP46881
Sequence Annotations
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.73 Å
  • R-Value Free: 0.168 
  • R-Value Work: 0.149 
  • R-Value Observed: 0.150 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 157.645α = 90
b = 62.787β = 112.18
c = 91.657γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
MAR345data collection
MOSFLMdata reduction
CCP4data scaling
TRUNCATEdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2004-09-07
    Type: Initial release
  • Version 1.1: 2008-04-29
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Advisory, Version format compliance
  • Version 1.3: 2017-10-11
    Changes: Refinement description