1ECS

THE 1.7 A CRYSTAL STRUCTURE OF A BLEOMYCIN RESISTANCE DETERMINANT ENCODED ON THE TRANSPOSON TN5


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal structures of the transposon Tn5-carried bleomycin resistance determinant uncomplexed and complexed with bleomycin.

Maruyama, M.Kumagai, T.Matoba, Y.Hayashida, M.Fujii, T.Hata, Y.Sugiyama, M.

(2001) J.Biol.Chem. 276: 9992-9999

  • DOI: 10.1074/jbc.M009874200
  • Primary Citation of Related Structures:  1EWJ

  • PubMed Abstract: 
  • The transposon Tn5 carries a gene designated ble that confers resistance to bleomycin (Bm). In this study, we determined the x-ray crystal structures of the ble gene product, designated BLMT, uncomplexed and complexed with Bm at 1.7 and 2.5 A resolut ...

    The transposon Tn5 carries a gene designated ble that confers resistance to bleomycin (Bm). In this study, we determined the x-ray crystal structures of the ble gene product, designated BLMT, uncomplexed and complexed with Bm at 1.7 and 2.5 A resolution, respectively. The structure of BLMT is a dimer with two Bm-binding pockets composed of two large concavities and two long grooves. This crystal structure of BLMT complexed with Bm gives a precise mode for binding of the antibiotic to BLMT. The conformational change of BLMT generated by binding to Bm occurs at a beta-turn composed of the residues from Gln(97) to Thr(102). Crystallographic analysis of Bm bound to BLMT shows that two thiazolium rings of the bithiazole moiety are in the trans conformation. The axial ligand, which binds a metal ion, seems to be the primary amine in the beta-aminoalanine moiety. This report, which is the first with regard to the x-ray crystal structure of Bm, shows that the bithiazole moiety of Bm is far from the metal-binding domain. That is, Bm complexed with BLMT takes a more extended form than the drug complexed with DNA.


    Related Citations: 
    • Crystallization and preliminary X-ray diffraction studies of bleomycin-binding protein encoded on the transposon Tn5
      Kumagai, T.,Maruyama, M.,Matoba, Y.,Kawano, Y.,Sugiyama, M.
      (1999) Acta Crystallogr.,Sect.D 55: 1095
    • Characterizaton of the bleomycin resistance determinant encoded on the transposon Tn5
      Kumagai, T.,Nakano, T.,Maruyama, M.,Mochizuki, H.,Sugiyama, M.
      (1999) FEBS Lett. 442: 34


    Organizational Affiliation

    Institute of Pharmaceutical Sciences, Faculty of Medicine, Hiroshima University, Kasumi 1-2-3, Minami-ku, Hiroshima, Japan.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
BLEOMYCIN RESISTANCE PROTEIN
A, B
126Klebsiella pneumoniaeGene Names: ble
Find proteins for P13081 (Klebsiella pneumoniae)
Go to UniProtKB:  P13081
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CA
Query on CA

Download SDF File 
Download CCD File 
A
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
PG4
Query on PG4

Download SDF File 
Download CCD File 
A, B
TETRAETHYLENE GLYCOL
C8 H18 O5
UWHCKJMYHZGTIT-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 81.330α = 90.00
b = 85.030β = 90.00
c = 78.820γ = 90.00
Software Package:
Software NamePurpose
X-PLORphasing
WEISdata reduction
WEISdata scaling
SHELXL-97refinement
X-PLORmodel building

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2001-05-02
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance