1ADN

SOLUTION STRUCTURE OF THE DNA METHYLPHOSPHOTRIESTER REPAIR DOMAIN OF ESCHERICHIA COLI ADA


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Submitted: 14 

wwPDB Validation   3D Report Full Report


This is version 1.4 of the entry. See complete history


Literature

Solution structure of the DNA methyl phosphotriester repair domain of Escherichia coli Ada.

Myers, L.C.Verdine, G.L.Wagner, G.

(1993) Biochemistry 32: 14089-14094

  • DOI: https://doi.org/10.1021/bi00214a003
  • Primary Citation of Related Structures:  
    1ADN

  • PubMed Abstract: 

    The Escherichia coli Ada protein repairs methyl phosphotriesters in DNA by direct, irreversible methyl transfer to one of its own cysteine residues. The methyl-transfer process appears to be autocatalyzed by coordination of the acceptor residue, Cys-69, to a tightly bound zinc ion. Upon methyl transfer, Ada acquires the ability to bind DNA sequence-specifically and thereby to induce genes that confer resistance to methylating agents. The solution structure of an N-terminal 10-kDa fragment of Ada, which retains zinc binding and DNA methyl phosphotriester repair activities, was determined using multidimensional heteronuclear nuclear magnetic resonance techniques. The structure reveals a zinc-binding motif unlike any observed thus far in transcription factors or zinc-containing enzymes and provides insight into the mechanism of metalloactivated DNA repair.


  • Organizational Affiliation

    Department of Chemistry, Harvard University, Cambridge, Massachusetts 02138.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
N-ADA 1092Escherichia coliMutation(s): 0 
EC: 2.1.1.63
UniProt
Find proteins for P06134 (Escherichia coli (strain K12))
Explore P06134 
Go to UniProtKB:  P06134
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP06134
Sequence Annotations
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download Ideal Coordinates CCD File 
B [auth A]ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Submitted: 14 

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1994-01-31
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2022-02-16
    Changes: Database references, Derived calculations, Other
  • Version 1.4: 2024-05-22
    Changes: Data collection