1VID

CATECHOL O-METHYLTRANSFERASE

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Work: 0.194 
  • R-Value Observed: 0.194 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history. 


Literature

Crystal structure of catechol O-methyltransferase.

Vidgren, J., Svensson, L.A., Liljas, A.

(1994) Nature 368: 354-358

  • DOI: 10.1038/368354a0
  • Primary Citation of Related Structures:  
    1VID

  • PubMed Abstract: 

    • Catechol O-methyltransferase (COMT, EC 2.1.1.6) is important in the central nervous system because it metabolizes catecholamine neurotransmitters such as dopamine. The enzyme catalyses the transfer of the methyl group from S-adenosyl-L-methionine (Ad ...

    Catechol O-methyltransferase (COMT, EC 2.1.1.6) is important in the central nervous system because it metabolizes catecholamine neurotransmitters such as dopamine. The enzyme catalyses the transfer of the methyl group from S-adenosyl-L-methionine (AdoMet) to one hydroxyl group of catechols. COMT also inactivates catechol-type compounds such as L-DOPA. With selective inhibitors of COMT in combination with L-DOPA, a new principle has been realized in the therapy of Parkinson's disease. Here we solve the atomic structure of COMT to 2.0 A resolution, which provides new insights into the mechanism of the methyl transfer reaction. The co-enzyme-binding domain is strikingly similar to that of an AdoMet-dependent DNA methylase, indicating that all AdoMet methylases may have a common structure.

    Related Citations: 
    • Crystallization and Preliminary X-Ray Investigation of a Recombinant Form of Rat Catechol O-Methyltransferase
      Vidgren, J., Tilgmann, C., Lundstrom, K., Liljas, A.
      (1991) Proteins 11: 233
    Organizational Affiliation: 

    Orion Corporation, Espoo, Finland.



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
CATECHOL O-METHYLTRANSFERASEA221Rattus norvegicusMutation(s): 0 
Gene Names: Comt
EC: 2.1.1.6
Find proteins for P22734 (Rattus norvegicus)
Explore P22734 
Go to UniProtKB:  P22734
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SAM
Query on SAM
Download CCD File 
A
S-ADENOSYLMETHIONINE
C15 H22 N6 O5 S
MEFKEPWMEQBLKI-FCKMPRQPSA-N		 Ligand Interaction
DNC
Query on DNC
Download CCD File 
A
3,5-DINITROCATECHOL
C6 H4 N2 O6
VDCDWNDTNSWDFJ-UHFFFAOYSA-N		 Ligand Interaction
MG
Query on MG
Download CCD File 
A
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N		 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
DNCIC50:  12   nM  BindingDB
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Work: 0.194 
  • R-Value Observed: 0.194 
  • Space Group: P 32 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 51.3α = 90
b = 51.3β = 90
c = 168.5γ = 120
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
DENZOdata reduction
SCALEPACKdata scaling
X-PLORphasing

Structure Validation

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View more in-depth experimental data

Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1996-07-11
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance