1ORK

TET REPRESSOR, CLASS D IN COMPLEX WITH 9-(N,N-DIMETHYLGLYCYLAMIDO)-6-DEMETHYL-6-DEOXY-TETRACYCLINE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.275 
  • R-Value Work: 0.214 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal structure of the tet repressor in complex with a novel tetracycline, 9-(N,N-dimethylglycylamido)- 6-demethyl-6-deoxy-tetracycline.

Orth, P.Schnappinger, D.Sum, P.E.Ellestad, G.A.Hillen, W.Saenger, W.Hinrichs, W.

(1999) J.Mol.Biol. 285: 455-461

  • DOI: 10.1006/jmbi.1998.2290

  • PubMed Abstract: 
  • The tetracycline analog 9-(N, N-dimethylglycylamido)-6-demethyl-6-deoxy-tetracycline (9glyTc) belongs to a new group of tetracyclines called glycylcyclines. They are strong antibiotics showing reduced sensitivity against the major tetracycline resist ...

    The tetracycline analog 9-(N, N-dimethylglycylamido)-6-demethyl-6-deoxy-tetracycline (9glyTc) belongs to a new group of tetracyclines called glycylcyclines. They are strong antibiotics showing reduced sensitivity against the major tetracycline resistance mechanisms. We have determined the crystal structure of 9glyTc in complex with Tet repressor class D, TetR(D), at 2.4 A resolution. Sterical hindrance at the entrance of the tetracycline binding tunnel of TetR by the bulky and charged glycyl amido substituent interferes with conformational changes required for the mechanism of induction, and leads to decreased induction efficiency as observed for point mutations of amino acid residues located in the neighbourhood to the glycylamido moiety of bound 9glyTc.


    Related Citations: 
    • The Complex Formed between Tet Repressor and Tetracycline-Mg2+ Reveals Mechanism of Antibiotic Resistance
      Kisker, C.,Hinrichs, W.,Tovar, K.,Hillen, W.,Saenger, W.
      (1995) J.Mol.Biol. 247: 260
    • Structure of the Tet Repressor-Tetracycline Complex and Regulation of Antibiotic Resistance
      Hinrichs, W.,Kisker, C.,Duvel, M.,Muller, A.,Tovar, K.,Hillen, W.,Saenger, W.
      (1994) Science 264: 418
    • Conformational Changes of the Tet Repressor Induced by Tetracycline Trapping
      Orth, P.,Cordes, F.,Schnappinger, D.,Hillen, W.,Saenger, W.,Hinrichs, W.
      (1998) J.Mol.Biol. 279: 439


    Organizational Affiliation

    Freie Universit├Ąt Berlin, Takustr. 6, Berlin, D-14195, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
TETRACYCLINE REPRESSOR
A
207Escherichia coliMutation(s): 0 
Gene Names: tetR
Find proteins for P0ACT4 (Escherichia coli)
Go to UniProtKB:  P0ACT4
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ATC
Query on ATC

Download SDF File 
Download CCD File 
A
9-(N,N-DIMETHYLGLYCYLAMIDO)-6-DEOXY-6-DEMETHYL-TETRACYCLINE
C25 H30 N4 O8
OAZYAPOSQALFER-CLPWGHEBSA-N
 Ligand Interaction
MG
Query on MG

Download SDF File 
Download CCD File 
A
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
ATCKd: 1.56 nM BINDINGMOAD
ATCKd: 1.56 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.275 
  • R-Value Work: 0.214 
  • Space Group: I 41 2 2
Unit Cell:
Length (Å)Angle (°)
a = 68.940α = 90.00
b = 68.940β = 90.00
c = 180.750γ = 90.00
Software Package:
Software NamePurpose
MOSFLMdata reduction
X-PLORmodel building
X-PLORrefinement
CCP4data scaling
X-PLORphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1999-06-15
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Derived calculations, Version format compliance