5PA3

humanized COMT in complex with 8-hydroxy-6-[2-(methoxymethyl)phenyl]-3H-quinazolin-4-one

• PDB DOI: https://doi.org/10.2210/pdb5PA3/pdb
• Deposition Group: G_1002014 ExploreG_1002014

• Classification: TRANSFERASE
• Organism(s): Rattus norvegicus
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): Yes 


• Deposited: 2016-10-19 Released: 2017-11-22 
• Deposition Author(s): Ehler, A., Lerner, C., Rudolph, M.G.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.60 Å
• R-Value Free: 0.208 
• R-Value Work: 0.170 
• R-Value Observed: 0.172 

Starting Model: other

Literature

Crystal Structure of a COMT complex

Lerner, C., Jakob-Roetne, R., Groebke-Zbinden, K., Buettelmann, B., Rudolph, M.G.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

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

Macromolecule Content

• Total Structure Weight: 25.65 kDa 
• Atom Count: 1,976 
• Modelled Residue Count: 213 
• Deposited Residue Count: 221 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Catechol O-methyltransferase	A	221	Rattus norvegicus	Mutation(s): 2  Gene Names: Comt EC: 2.1.1.6
UniProt
Find proteins for P22734 (Rattus norvegicus) Explore P22734  Go to UniProtKB:  P22734

Small Molecules

Ligands 6 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SAH	B [auth A]	S-ADENOSYL-L-HOMOCYSTEINE C14 H20 N6 O5 S ZJUKTBDSGOFHSH-WFMPWKQPSA-N
7JV	C [auth A]	6-[2-(methoxymethyl)phenyl]-8-oxidanyl-1~{H}-quinazolin-4-one C16 H14 N2 O3 CBWCDEQPQXXGLJ-UHFFFAOYSA-N
D1D	E [auth A]	(4S,5S)-1,2-DITHIANE-4,5-DIOL C4 H8 O2 S2 YPGMOWHXEQDBBV-QWWZWVQMSA-N
K	F [auth A], G [auth A]	POTASSIUM ION K NPYPAHLBTDXSSS-UHFFFAOYSA-N
CL	D [auth A]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M
MG	H [auth A]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.60 Å
• R-Value Free: 0.208 
• R-Value Work: 0.170 
• R-Value Observed: 0.172 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 49.577	α = 90
b = 53.503	β = 90
c = 80.997	γ = 90

Software Package:

Software Name	Purpose
XSCALE	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
XDS	data reduction
PHASER	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2017-11-22 
Deposition Author(s): Ehler, A., Lerner, C., Rudolph, M.G.

Revision History  

• Version 1.0: 2017-11-22
  Type: Initial release
  
• Version 1.1: 2018-02-21
  Changes: Structure summary
• Version 1.2: 2021-11-17
  Changes: Database references, Derived calculations, Structure summary
• Version 1.3: 2024-04-03
  Changes: Data collection, Refinement description