5HWT

Crystal structure of apo-PAS1


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.70 Å
  • R-Value Free: 0.224 
  • R-Value Work: 0.150 
  • R-Value Observed: 0.153 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Molecular Insights into Toluene Sensing in the TodS/TodT Signal Transduction System.

Koh, S.Hwang, J.Guchhait, K.Lee, E.G.Kim, S.Y.Kim, S.Lee, S.Chung, J.M.Jung, H.S.Lee, S.J.Ryu, C.M.Lee, S.G.Oh, T.K.Kwon, O.Kim, M.H.

(2016) J Biol Chem 291: 8575-8590

  • DOI: 10.1074/jbc.M116.718841
  • Primary Citation of Related Structures:  
    5HWT, 5HWW, 5HWV

  • PubMed Abstract: 
  • TodS is a sensor kinase that responds to various monoaromatic compounds, which either cause an agonistic or antagonistic effect on phosphorylation of its cognate response regulator TodT, and controls tod operon expression in Pseudomonas putida strains. We describe a molecular sensing mechanism of TodS that is activated in response to toluene ...

    TodS is a sensor kinase that responds to various monoaromatic compounds, which either cause an agonistic or antagonistic effect on phosphorylation of its cognate response regulator TodT, and controls tod operon expression in Pseudomonas putida strains. We describe a molecular sensing mechanism of TodS that is activated in response to toluene. The crystal structures of the TodS Per-Arnt-Sim (PAS) 1 sensor domain (residues 43-164) and its complex with toluene (agonist) or 1,2,4-trimethylbenzene (antagonist) show a typical β2α3β3 PAS fold structure (residues 45-149), forming a hydrophobic ligand-binding site. A signal transfer region (residues 150-163) located immediately after the canonical PAS fold may be intrinsically flexible and disordered in both apo-PAS1 and antagonist-bound forms and dramatically adapt an α-helix upon toluene binding. This structural change in the signal transfer region is proposed to result in signal transmission to activate the TodS/TodT two-component signal transduction system. Site-directed mutagenesis and β-galactosidase assays using a P. putida reporter strain system verified the essential residues involved in ligand sensing and signal transfer and suggest that the Phe(46) residue acts as a ligand-specific switch.


    Organizational Affiliation

    From the Infection and Immunity Research Center, the Biosystems and Bioengineering Program, University of Science and Technology, Daejeon 305-350, Korea mhk8n@kribb.re.kr.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Sensor histidine kinase TodSA, B130Pseudomonas putida F1Mutation(s): 0 
Gene Names: todSPput_2872
EC: 2.7.13.3
UniProt
Find proteins for A5W4E3 (Pseudomonas putida (strain ATCC 700007 / DSM 6899 / BCRC 17059 / F1))
Explore A5W4E3 
Go to UniProtKB:  A5W4E3
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A, BL-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.70 Å
  • R-Value Free: 0.224 
  • R-Value Work: 0.150 
  • R-Value Observed: 0.153 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 41.114α = 90
b = 49.314β = 109.22
c = 56.222γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
HKL-2000data reduction
HKL-2000data scaling
MOLREPphasing

Structure Validation

View Full Validation Report




Entry History & Funding Information

Deposition Data

  • Deposited Date: 2016-01-29 
  • Released Date: 2016-03-02 
  • Deposition Author(s): Hwang, J., Koh, S.

Funding OrganizationLocationGrant Number
Rural Development Administration, KoreaKorea, Republic OfPJ00817002, PJ00952403 and PJ011118

Revision History  (Full details and data files)

  • Version 1.0: 2016-03-02
    Type: Initial release
  • Version 1.1: 2017-12-06
    Changes: Database references, Derived calculations