6AW5 | pdb_00006aw5

1.90A resolution structure of catechol O-methyltransferase (COMT) L136M (hexagonal form) from Nannospalax galili

• PDB DOI: https://doi.org/10.2210/pdb6AW5/pdb

• Classification: TRANSFERASE
• Organism(s): Nannospalax galili
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2017-09-05 Released: 2018-09-12 
• Deposition Author(s): Lovell, S., Mehzabeen, N., Battaile, K.P., Deng, Y., Hanzlik, R.P., Shams, I., Moskovitz, J.
• Funding Organization(s): National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 
  0.192 (Depositor), 0.188 (DCC) 
• R-Value Work: 
  0.163 (Depositor) 
• R-Value Observed: 
  0.164 (Depositor) 

Starting Model: experimental

Literature

Crystal structure of the catechol-o-methyl transferase (COMT) enzyme of the subterranean mole rat (Spalax) and the effect of L136M substitution

Deng, Y., Lovell, S., Mehzabeen, N., Battaile, K.P., Hanzlik, R.P., Shams, I., Moskovitz, J.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: gel filtration

Macromolecule Content 

• Total Structure Weight: 25.92 kDa 
• Atom Count: 1,770 
• Modeled Residue Count: 213 
• Deposited Residue Count: 228 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Catechol O-methyltransferase	A	228	Nannospalax galili	Mutation(s): 0  EC: 2.1.1.6
UniProt
Find proteins for A0A452CSQ2 (Nannospalax galili) Explore A0A452CSQ2  Go to UniProtKB:  A0A452CSQ2

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
GOL	E [auth A]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N
CL	C [auth A], D [auth A]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M
NA	B [auth A]	SODIUM ION Na FKNQFGJONOIPTF-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free:  0.192 (Depositor), 0.188 (DCC) 
• R-Value Work:  0.163 (Depositor) 
• R-Value Observed: 0.164 (Depositor) 

Space Group: P 6₂

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 95.186	α = 90
b = 95.186	β = 90
c = 75.172	γ = 120

Software Package:

Software Name	Purpose
Aimless	data scaling
PHASER	phasing
PHENIX	refinement
PDB_EXTRACT	data extraction

Structure Validation

Entry History 

& Funding Information

Deposition Data

• Released Date: 2018-09-12 
Deposition Author(s): Lovell, S., Mehzabeen, N., Battaile, K.P., Deng, Y., Hanzlik, R.P., Shams, I., Moskovitz, J.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	P30 GM110761

Revision History  

• Version 1.0: 2018-09-12
  Type: Initial release
  
• Version 1.1: 2019-02-20
  Changes: Author supporting evidence, Data collection
• Version 1.2: 2020-01-01
  Changes: Author supporting evidence
• Version 1.3: 2023-10-04
  Changes: Data collection, Database references, Refinement description