4Z2Y

Crystal structure of methyltransferase CalO6


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.4 Å
  • R-Value Free: 0.333 
  • R-Value Work: 0.325 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Crystal structure of O-methyltransferase CalO6 from the calicheamicin biosynthetic pathway: a case of challenging structure determination at low resolution.

Tsodikov, O.V.Hou, C.Walsh, C.T.Garneau-Tsodikova, S.

(2015) Bmc Struct.Biol. 15: 13-13

  • DOI: 10.1186/s12900-015-0040-6

  • PubMed Abstract: 
  • Calicheamicins (CAL) are enedyine natural products with potent antibiotic and cytotoxic activity, used in anticancer therapy. The O-methyltransferase CalO6 is proposed to catalyze methylation of the hydroxyl moiety at the C2 position of the orsellini ...

    Calicheamicins (CAL) are enedyine natural products with potent antibiotic and cytotoxic activity, used in anticancer therapy. The O-methyltransferase CalO6 is proposed to catalyze methylation of the hydroxyl moiety at the C2 position of the orsellinic acid group of CAL.


    Organizational Affiliation

    Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, 789 South Limestone Street, 40536-0596, Lexington, KY, USA. oleg.tsodikov@uky.edu.,Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, 200 Longwood Avenue, 02215, Boston, MA, USA. christopher_walsh@hms.harvard.edu.,Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, 789 South Limestone Street, 40536-0596, Lexington, KY, USA. sylviegtsodikova@uky.edu.,Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, 789 South Limestone Street, 40536-0596, Lexington, KY, USA. chou2@uky.edu.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
CalO6
A
359Micromonospora echinosporaMutation(s): 0 
Gene Names: calO6
Find proteins for Q8KND2 (Micromonospora echinospora)
Go to UniProtKB:  Q8KND2
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
HG
Query on HG

Download SDF File 
Download CCD File 
A
MERCURY (II) ION
Hg
BQPIGGFYSBELGY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.4 Å
  • R-Value Free: 0.333 
  • R-Value Work: 0.325 
  • Space Group: H 3 2
Unit Cell:
Length (Å)Angle (°)
a = 126.828α = 90.00
b = 126.828β = 90.00
c = 105.659γ = 120.00
Software Package:
Software NamePurpose
PHENIXphasing
HKL-2000data reduction
HKL-2000data scaling
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2015-07-22
    Type: Initial release
  • Version 1.1: 2015-07-29
    Type: Database references