3J25

Structural basis for TetM-mediated tetracycline resistance


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 7.20 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structural basis for TetM-mediated tetracycline resistance.

Donhofer, A.Franckenberg, S.Wickles, S.Berninghausen, O.Beckmann, R.Wilson, D.N.

(2012) Proc Natl Acad Sci U S A 109: 16900-16905

  • DOI: 10.1073/pnas.1208037109
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • Ribosome protection proteins (RPPs) confer tetracycline resistance by binding to the ribosome and chasing the drug from its binding site. The current model for the mechanism of action of RPPs proposes that drug release is indirect and achieved via co ...

    Ribosome protection proteins (RPPs) confer tetracycline resistance by binding to the ribosome and chasing the drug from its binding site. The current model for the mechanism of action of RPPs proposes that drug release is indirect and achieved via conformational changes within the drug-binding site induced upon binding of the RPP to the ribosome. Here we report a cryo-EM structure of the RPP TetM in complex with the 70S ribosome at 7.2-Å resolution. The structure reveals the contacts of TetM with the ribosome, including interaction between the conserved and functionally critical C-terminal extension of TetM and the decoding center of the small subunit. Moreover, we observe direct interaction between domain IV of TetM and the tetracycline binding site and identify residues critical for conferring tetracycline resistance. A model is presented whereby TetM directly dislodges tetracycline to confer resistance.


    Organizational Affiliation

    Gene Center and Department for Biochemistry, University of Munich, 81377 Munich, Germany.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Tetracycline resistance protein tetM
A
638Enterococcus faecalisMutation(s): 0 
Gene Names: tetMtransposon TnFO1tet(M)
Find proteins for Q47810 (Enterococcus faecalis)
Go to UniProtKB:  Q47810
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GCP
Query on GCP

Download CCD File 
A
PHOSPHOMETHYLPHOSPHONIC ACID GUANYLATE ESTER
C11 H18 N5 O13 P3
PHBDHXOBFUBCJD-KQYNXXCUSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 7.20 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-10-17
    Type: Initial release
  • Version 1.1: 2012-10-31
    Changes: Database references
  • Version 1.2: 2018-07-18
    Changes: Data collection