1BYL

BLEOMYCIN RESISTANCE PROTEIN FROM STREPTOALLOTEICHUS HINDUSTANUS


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Work: 0.176 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Crystal structure and site-directed mutagenesis of a bleomycin resistance protein and their significance for drug sequestering.

Dumas, P.Bergdoll, M.Cagnon, C.Masson, J.M.

(1994) EMBO J. 13: 2483-2492


  • PubMed Abstract: 
  • The antibiotic bleomycin, a strong DNA cutting agent, is naturally produced by actinomycetes which have developed a resistance mechanism against such a lethal compound. The crystal structure, at 2.3 A resolution, of a bleomycin resistance protein of ...

    The antibiotic bleomycin, a strong DNA cutting agent, is naturally produced by actinomycetes which have developed a resistance mechanism against such a lethal compound. The crystal structure, at 2.3 A resolution, of a bleomycin resistance protein of 14 kDa reveals a structure in two halves with the same alpha/beta fold despite no sequence similarity. The crystal packing shows compact dimers with a hydrophobic interface and involved in mutual chain exchange. Two independent solution studies (analytical centrifugation and light scattering) showed that this dimeric form is not a packing artefact but is indeed the functional one. Furthermore, light scattering also showed that one dimer binds two antibiotic molecules as expected. A crevice located at the dimer interface, as well as the results of a site-directed mutagenesis study, led to a model wherein two bleomycin molecules are completely sequestered by one dimer. This provides a novel insight into antibiotic resistance due to drug sequestering, and probably also into drug transport and excretion.


    Related Citations: 
    • All in the Family: Structural and Evolutionary Relationships Among Three Modular Proteins with Functions and Variable Assembly
      Bergdoll, M.,Eltis, L.D.,Cameron, A.D.,Dumas, P.,Bolin, J.T.
      (1998) Protein Sci. 7: 1661
    • Crystallization and Preliminary X-Ray Data of a Phleomycin-Binding Protein from Streptoalloteichus Hindistanus
      Rondeau, J.M.,Cagnon, C.,Moras, D.,Masson, J.M.
      (1989) Embo J. 207: 645
    • Bleomycin Resistance Conferred by a Drug-Binding Protein
      Gatignol, A.,Durand, H.,Tiraby, G.
      (1988) FEBS Lett. 230: 171


    Organizational Affiliation

    Laboratoire de Biologie Structurale, CNRS, Strasbourg, France.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PROTEIN (BLEOMYCIN RESISTANCE PROTEIN)
A
125Streptoalloteichus hindustanusMutation(s): 0 
Gene Names: ble
Find proteins for P17493 (Streptoalloteichus hindustanus)
Go to UniProtKB:  P17493
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Work: 0.176 
  • Space Group: P 41 21 2
Unit Cell:
Length (Å)Angle (°)
a = 48.400α = 90.00
b = 48.400β = 90.00
c = 111.500γ = 90.00
Software Package:
Software NamePurpose
X-GENdata reduction
PHASERphasing
X-PLORrefinement
LOCHVATphasing
LOCHVAT(SEEmodel building
CCP4phasing
CCP4model building
PHARE)phasing
X-GENdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1999-10-21
    Type: Initial release
  • Version 1.1: 2007-10-16
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Derived calculations, Version format compliance
  • Version 1.3: 2017-10-04
    Type: Refinement description