4MLO

1.65A resolution structure of ToxT from Vibrio cholerae (P21 Form)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.65 Å
  • R-Value Free: 0.194 
  • R-Value Work: 0.168 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

1.65 angstrom resolution structure of the AraC-family transcriptional activator ToxT from Vibrio cholerae.

Li, J.Wehmeyer, G.Lovell, S.Battaile, K.P.Egan, S.M.

(2016) Acta Crystallogr F Struct Biol Commun 72: 726-731

  • DOI: 10.1107/S2053230X1601298X

  • PubMed Abstract: 
  • ToxT is an AraC-family transcriptional activator protein that controls the expression of key virulence factors in Vibrio cholerae, the causative agent of cholera. ToxT directly activates the expression of the genes that encode the toxin-coregulated p ...

    ToxT is an AraC-family transcriptional activator protein that controls the expression of key virulence factors in Vibrio cholerae, the causative agent of cholera. ToxT directly activates the expression of the genes that encode the toxin-coregulated pilus and cholera toxin, and also positively auto-regulates its own expression from the tcp promoter. The crystal structure of ToxT has previously been solved at 1.9 Å resolution (PDB entry 3gbg). In this study, a crystal structure of ToxT at 1.65 Å resolution with a similar overall structure to the previously determined structure is reported. However, there are distinct differences between the two structures, particularly in the region that extends from Asp101 to Glu110. This region, which can influence ToxT activity but was disordered in the previous structure, can be traced entirely in the current structure.


    Organizational Affiliation

    Department of Molecular Bioscience, The University of Kansas, 8031 Haworth, 1200 Sunnyside Avenue, Lawrence, KS 66045, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
TCP pilus virulence regulatory protein
A
276Vibrio choleraeMutation(s): 0 
Gene Names: toxT (tcpN)
Find proteins for Q7BGC0 (Vibrio cholerae)
Go to UniProtKB:  Q7BGC0
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CL
Query on CL

Download SDF File 
Download CCD File 
A
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
PAM
Query on PAM

Download SDF File 
Download CCD File 
A
PALMITOLEIC ACID
C16 H30 O2
SECPZKHBENQXJG-FPLPWBNLSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.65 Å
  • R-Value Free: 0.194 
  • R-Value Work: 0.168 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 47.337α = 90.00
b = 39.410β = 97.94
c = 80.238γ = 90.00
Software Package:
Software NamePurpose
SCALAdata scaling
PHASERphasing
PDB_EXTRACTdata extraction
XDSdata reduction
JDirectordata collection
PHENIXrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2016-04-20
    Type: Initial release
  • Version 1.1: 2016-09-07
    Type: Database references
  • Version 1.2: 2016-10-05
    Type: Database references
  • Version 1.3: 2017-11-15
    Type: Refinement description