2WIU

Mercury-modified bacterial persistence regulator hipBA


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.35 Å
  • R-Value Free: 0.264 
  • R-Value Work: 0.216 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

New Kinase Regulation Mechanism Found in Hipba: A Bacterial Persistence Switch.

Evdokimov, A.Voznesensky, I.Fennell, K.Anderson, M.Smith, J.F.Fisher, D.A.

(2009) Acta Crystallogr.,Sect.D 65: 875

  • DOI: 10.1107/S0907444909018800

  • PubMed Abstract: 
  • Bacterial persistence is the ability of individual cells to randomly enter a period of dormancy during which the cells are protected against antibiotics. In Escherichia coli, persistence is regulated by the activity of a protein kinase HipA and its D ...

    Bacterial persistence is the ability of individual cells to randomly enter a period of dormancy during which the cells are protected against antibiotics. In Escherichia coli, persistence is regulated by the activity of a protein kinase HipA and its DNA-binding partner HipB, which is a strong inhibitor of both HipA activity and hip operon transcription. The crystal structure of the HipBA complex was solved by application of the SAD technique to a mercury derivative. In this article, the fortuitous and interesting effect of mercury soaks on the native HipBA crystals is discussed as well as the intriguing tryptophan-binding pocket found on the HipA surface. A HipA-regulation model is also proposed that is consistent with the available structural and biochemical data.


    Organizational Affiliation

    Pfizer Inc, Groton, Connecticut, USA. artem@xtals.org




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PROTEIN HIPA
A, C
446Escherichia coli (strain K12)Gene Names: hipA
EC: 2.7.11.1
Find proteins for P23874 (Escherichia coli (strain K12))
Go to UniProtKB:  P23874
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
HTH-TYPE TRANSCRIPTIONAL REGULATOR HIPB
B, D
88Escherichia coli (strain K12)Gene Names: hipB
Find proteins for P23873 (Escherichia coli (strain K12))
Go to UniProtKB:  P23873
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CL
Query on CL

Download SDF File 
Download CCD File 
A, B, C, D
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
HG
Query on HG

Download SDF File 
Download CCD File 
A, B, C, D
MERCURY (II) ION
Hg
BQPIGGFYSBELGY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.35 Å
  • R-Value Free: 0.264 
  • R-Value Work: 0.216 
  • Space Group: P 42 2 2
Unit Cell:
Length (Å)Angle (°)
a = 166.933α = 90.00
b = 166.933β = 90.00
c = 124.577γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data reduction
REFMACrefinement
SOLOMONphasing
SHARPphasing
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2009-07-28
    Type: Initial release
  • Version 1.1: 2012-04-04
    Type: Database references, Derived calculations, Non-polymer description, Other, Refinement description, Structure summary, Version format compliance