3FBR

structure of HipA-amppnp-peptide


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.50 Å
  • R-Value Free: 0.336 
  • R-Value Work: 0.282 
  • R-Value Observed: 0.282 

Starting Model: experimental
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This is version 1.3 of the entry. See complete history


Literature

Molecular mechanisms of HipA-mediated multidrug tolerance and its neutralization by HipB.

Schumacher, M.A.Piro, K.M.Xu, W.Hansen, S.Lewis, K.Brennan, R.G.

(2009) Science 323: 396-401

  • DOI: https://doi.org/10.1126/science.1163806
  • Primary Citation of Related Structures:  
    3DNT, 3DNU, 3DNV, 3FBR, 3HZI

  • PubMed Abstract: 

    Bacterial multidrug tolerance is largely responsible for the inability of antibiotics to eradicate infections and is caused by a small population of dormant bacteria called persisters. HipA is a critical Escherichia coli persistence factor that is normally neutralized by HipB, a transcription repressor, which also regulates hipBA expression. Here, we report multiple structures of HipA and a HipA-HipB-DNA complex. HipA has a eukaryotic serine/threonine kinase-like fold and can phosphorylate the translation factor EF-Tu, suggesting a persistence mechanism via cell stasis. The HipA-HipB-DNA structure reveals the HipB-operator binding mechanism, approximately 70 degrees DNA bending, and unexpected HipA-DNA contacts. Dimeric HipB interacts with two HipA molecules to inhibit its kinase activity through sequestration and conformational inactivation. Combined, these studies suggest mechanisms for HipA-mediated persistence and its neutralization by HipB.


  • Organizational Affiliation

    Department of Biochemistry and Molecular Biology, University of Texas, M. D. Anderson Cancer Center, Unit 1000, Houston, TX 77030, USA. maschuma@mdanderson.org


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Serine/threonine-protein kinase toxin HipA437Escherichia coli K-12Mutation(s): 1 
Gene Names: hipAb1507JW1500
EC: 2.7.11.1
UniProt
Find proteins for P23874 (Escherichia coli (strain K12))
Explore P23874 
Go to UniProtKB:  P23874
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP23874
Sequence Annotations
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  • Reference Sequence

Find similar proteins by:  Sequence   |   3D Structure  

Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
peptide of EF-Tu9N/AMutation(s): 0 
Sequence Annotations
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
ACP
Query on ACP

Download Ideal Coordinates CCD File 
C [auth A]PHOSPHOMETHYLPHOSPHONIC ACID ADENYLATE ESTER
C11 H18 N5 O12 P3
UFZTZBNSLXELAL-IOSLPCCCSA-N
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.50 Å
  • R-Value Free: 0.336 
  • R-Value Work: 0.282 
  • R-Value Observed: 0.282 
  • Space Group: I 4 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 128.4α = 90
b = 128.4β = 90
c = 203.92γ = 90
Software Package:
Software NamePurpose
CrystalCleardata collection
MOLREPphasing
CNSrefinement
CrystalCleardata reduction
CrystalCleardata scaling

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2009-02-10
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2021-10-20
    Changes: Database references, Derived calculations, Source and taxonomy, Structure summary
  • Version 1.3: 2023-09-06
    Changes: Data collection, Refinement description