4Z2Y

Crystal structure of methyltransferase CalO6


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.40 Å
  • R-Value Free: 0.333 
  • R-Value Work: 0.325 
  • R-Value Observed: 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
  • Primary Citation of Related Structures:  
    4Z2Y

  • 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 orsellinic acid group of CAL ...

    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. sylviegtsodikova@uky.edu.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
CalO6A359Micromonospora echinosporaMutation(s): 0 
Gene Names: calO6
Find proteins for Q8KND2 (Micromonospora echinospora)
Explore Q8KND2 
Go to UniProtKB:  Q8KND2
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
HG
Query on HG

Download Ideal Coordinates CCD File 
B [auth A], C [auth A]MERCURY (II) ION
Hg
BQPIGGFYSBELGY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.40 Å
  • R-Value Free: 0.333 
  • R-Value Work: 0.325 
  • R-Value Observed: 0.325 
  • Space Group: H 3 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 126.828α = 90
b = 126.828β = 90
c = 105.659γ = 120
Software Package:
Software NamePurpose
REFMACrefinement
HKL-2000data reduction
HKL-2000data scaling
PHENIXphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

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