3DNU

structure of MDT protein


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.54 Å
  • R-Value Free: 0.232 
  • R-Value Work: 0.195 
  • R-Value Observed: 0.195 

wwPDB Validation   3D Report Full Report


This is version 1.1 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: 10.1126/science.1163806
  • Primary Citation of Related Structures:  
    3DNU, 3DNV, 3DNT, 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 ...

    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)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Protein hipAA440Escherichia coli K-12Mutation(s): 1 
Gene Names: hipAb1507JW1500
EC: 2.7.11.1
Find proteins for P23874 (Escherichia coli (strain K12))
Explore P23874 
Go to UniProtKB:  P23874
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PO4
Query on PO4

Download Ideal Coordinates CCD File 
C [auth A], D [auth A], E [auth A]PHOSPHATE ION
O4 P
NBIIXXVUZAFLBC-UHFFFAOYSA-K
 Ligand Interaction
CL
Query on CL

Download Ideal Coordinates CCD File 
B [auth A]CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
AL-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.54 Å
  • R-Value Free: 0.232 
  • R-Value Work: 0.195 
  • R-Value Observed: 0.195 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 48.66α = 90
b = 85.81β = 90
c = 49.67γ = 90
Software Package:
Software NamePurpose
CNSrefinement
ADSCdata collection
MOSFLMdata reduction
SCALAdata scaling
SOLVEphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

  • Deposited Date: 2008-07-02 
  • Released Date: 2009-01-27 
  • Deposition Author(s): schumacher, M.A.

Revision History  (Full details and data files)

  • Version 1.0: 2009-01-27
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance