2IH2

Crystal structure of the adenine-specific DNA methyltransferase M.TaqI complexed with the cofactor analog AETA and a 10 bp DNA containing 5-methylpyrimidin-2(1H)-one at the target base partner position


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.61 Å
  • R-Value Free: 0.195 
  • R-Value Work: 0.160 
  • R-Value Observed: 0.162 

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This is version 1.2 of the entry. See complete history


Literature

Influence of the target base partner on the methylation rate of the adenine-specific DNA methyltransferase M.TaqI

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

To be published.

Macromolecules

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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Modification methylase TaqIE [auth A],
F [auth D]
421Thermus aquaticusMutation(s): 0 
Gene Names: taqIM
EC: 2.1.1.72
UniProt
Find proteins for P14385 (Thermus aquaticus)
Explore P14385 
Go to UniProtKB:  P14385
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP14385
Protein Feature View
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  • Reference Sequence

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Entity ID: 1
MoleculeChainsLengthOrganismImage
5'-D(*GP*TP*TP*CP*GP*AP*TP*GP*TP*C)-3'A [auth B],
C [auth E]
10N/A
Protein Feature View
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  • Reference Sequence

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Entity ID: 2
MoleculeChainsLengthOrganismImage
5'-D(*GP*AP*CP*AP*(5PY)P*CP*GP*(6MA)P*AP*C)-3'B [auth C],
D [auth F]
10N/A
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.61 Å
  • R-Value Free: 0.195 
  • R-Value Work: 0.160 
  • R-Value Observed: 0.162 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 59.439α = 90
b = 68.875β = 92.27
c = 114.349γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
ProDCdata collection
MAR345data collection
XDSdata scaling
MOLREPphasing

Structure Validation

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Ligand Structure Quality Assessment 



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • 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