2NP7

Crystal structure of the adenine-specific DNA methyltransferase M.TaqI complexed with the cofactor analog AETA and a 10 bp DNA containing an abasic site analog at the target position and pyrrolo-dC at the target base partner position


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.220 
  • R-Value Work: 0.177 
  • R-Value Observed: 0.179 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Caught in the act II: Visualization of an intermediate in the DNA base-flipping pathway induced by the adenine-specific DNA methyltransferase M.TaqI

Lenz, T.Scheidig, A.J.Weinhold, E.

To be published.

Macromolecules

Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Modification methylase TaqIA421Thermus aquaticusMutation(s): 0 
Gene Names: taqIM
EC: 2.1.1.72
Find proteins for P14385 (Thermus aquaticus)
Explore P14385 
Go to UniProtKB:  P14385
Protein Feature View
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  • Reference Sequence
  • Find similar nucleic acids by:  Sequence   |   Structure
  • Entity ID: 1
    MoleculeChainsLengthOrganismImage
    5'-D(*GP*TP*TP*CP*GP*(3DR)P*TP*GP*TP*C)-3'B10N/A
    • Find similar nucleic acids by:  Sequence   |   Structure
    • Entity ID: 2
      MoleculeChainsLengthOrganismImage
      5'-D(*GP*AP*CP*AP*(4PC)P*CP*GP*(6MA)P*AP*C)-3'C10N/A
      Small Molecules
      Ligands 2 Unique
      IDChainsName / Formula / InChI Key2D Diagram3D Interactions
      NEA
      Query on NEA

      Download CCD File 
      A
      5'-DEOXY-5'-[2-(AMINO)ETHYLTHIO]ADENOSINE
      C12 H18 N6 O3 S
      APAPOJUCRZTCHD-WOUKDFQISA-N
       Ligand Interaction
      GOL
      Query on GOL

      Download CCD File 
      A
      GLYCEROL
      C3 H8 O3
      PEDCQBHIVMGVHV-UHFFFAOYSA-N
       Ligand Interaction
      Experimental Data & Validation

      Experimental Data

      • Method: X-RAY DIFFRACTION
      • Resolution: 1.90 Å
      • R-Value Free: 0.220 
      • R-Value Work: 0.177 
      • R-Value Observed: 0.179 
      • Space Group: P 21 21 21
      Unit Cell:
      Length ( Å )Angle ( ˚ )
      a = 60.21α = 90
      b = 70.166β = 90
      c = 114.947γ = 90
      Software Package:
      Software NamePurpose
      REFMACrefinement
      ProDCdata collection
      MAR345data collection
      XDSdata scaling
      MOLREPphasing

      Structure Validation

      View Full Validation Report



      Entry History 

      Deposition Data

      Revision History 

      • Version 1.0: 2007-11-13
        Type: Initial release
      • Version 1.1: 2011-07-13
        Changes: Non-polymer description, Version format compliance
      • Version 1.2: 2017-10-18
        Changes: Refinement description