4YG7

Structure of FL autorepression promoter complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.77 Å
  • R-Value Free: 0.379 
  • R-Value Work: 0.384 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

HipBA-promoter structures reveal the basis of heritable multidrug tolerance.

Schumacher, M.A.Balani, P.Min, J.Chinnam, N.B.Hansen, S.Vulic, M.Lewis, K.Brennan, R.G.

(2015) Nature 524: 59-64

  • DOI: 10.1038/nature14662
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Multidrug tolerance is largely responsible for chronic infections and caused by a small population of dormant cells called persisters. Selection for survival in the presence of antibiotics produced the first genetic link to multidrug tolerance: a mut ...

    Multidrug tolerance is largely responsible for chronic infections and caused by a small population of dormant cells called persisters. Selection for survival in the presence of antibiotics produced the first genetic link to multidrug tolerance: a mutant in the Escherichia coli hipA locus. HipA encodes a serine-protein kinase, the multidrug tolerance activity of which is neutralized by binding to the transcriptional regulator HipB and hipBA promoter. The physiological role of HipA in multidrug tolerance, however, has been unclear. Here we show that wild-type HipA contributes to persister formation and that high-persister hipA mutants cause multidrug tolerance in urinary tract infections. Perplexingly, high-persister mutations map to the N-subdomain-1 of HipA far from its active site. Structures of higher-order HipA-HipB-promoter complexes reveal HipA forms dimers in these assemblies via N-subdomain-1 interactions that occlude their active sites. High-persistence mutations, therefore, diminish HipA-HipA dimerization, thereby unleashing HipA to effect multidrug tolerance. Thus, our studies reveal the mechanistic basis of heritable, clinically relevant antibiotic tolerance.


    Organizational Affiliation

    Department of Biochemistry, Duke University School of Medicine, Durham, North Carolina 27710, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Antitoxin HipB
B, E, C, G
71Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: hipB
Find proteins for P23873 (Escherichia coli (strain K12))
Go to UniProtKB:  P23873
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Serine/threonine-protein kinase HipA
D, K
436Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: hipA
EC: 2.7.11.1
Find proteins for P23874 (Escherichia coli (strain K12))
Go to UniProtKB:  P23874
Entity ID: 3
MoleculeChainsLengthOrganism
DNA (50-MER)R50Escherichia coli
Entity ID: 4
MoleculeChainsLengthOrganism
DNA (50-MER)T50Escherichia coli
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.77 Å
  • R-Value Free: 0.379 
  • R-Value Work: 0.384 
  • Space Group: P 43 21 2
Unit Cell:
Length (Å)Angle (°)
a = 228.200α = 90.00
b = 228.200β = 90.00
c = 130.800γ = 90.00
Software Package:
Software NamePurpose
PDB_EXTRACTdata extraction
CNSrefinement
SCALAdata scaling
MOSFLMdata reduction
CNSphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2015-02-25 
  • Released Date: 2015-07-29 
  • Deposition Author(s): Schumacher, M.A.

Revision History 

  • Version 1.0: 2015-07-29
    Type: Initial release
  • Version 1.1: 2015-08-12
    Type: Database references
  • Version 1.2: 2016-04-06
    Type: Source and taxonomy