1F3G

THREE-DIMENSIONAL STRUCTURE OF THE ESCHERICHIA COLI PHOSPHOCARRIER PROTEIN III GLC


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Three-dimensional structure of the Escherichia coli phosphocarrier protein IIIglc.

Worthylake, D.Meadow, N.D.Roseman, S.Liao, D.I.Herzberg, O.Remington, S.J.

(1991) Proc.Natl.Acad.Sci.USA 88: 10382-10386


  • PubMed Abstract: 
  • The crystal structure of a proteolytically modified form of the Escherichia coli phosphocarrier and signal transducing protein IIIglc has been determined by multiple isomorphous and molecular replacement. The model has been refined to an R-factor of ...

    The crystal structure of a proteolytically modified form of the Escherichia coli phosphocarrier and signal transducing protein IIIglc has been determined by multiple isomorphous and molecular replacement. The model has been refined to an R-factor of 0.166 for data between 6- and 2.1-A resolution with an rms deviation of 0.020 A from ideal bond lengths and 3.2 degrees from ideal bond angles. The molecule is a beta-sheet sandwich, with six antiparallel strands on either side. Several short distorted helices line the periphery of the active site, which is a shallow extremely hydrophobic depression approximately 18 A in diameter near the center of one face. The side chains of the active site histidine residues 75 and 90 face each other at the center of the depression, with the N3 positions exposed to solvent, separated by 3.3 A in an excellent position to form adducts with phosphate. Chloroplatinate forms a divalent adduct with both histidyl side chains, suggesting that the phosphodonor reaction might proceed through a similar transition state. The hydrophobic patch forms the primary crystal contact, suggesting a mode of association of IIIglc with other components of the phosphoenolpyruvate-dependent phosphotransferase system.


    Related Citations: 
    • Sugar Transport by the Bacterial Phosphotransferase System. Molecular Cloning and Structural Analysis of the Escherichia Coli Ptsh, Ptsi and Crr Genes
      Saffen, D.W.,Presper, K.A.,Doering, T.L.,Roseman, S.
      (1987) J.Biol.Chem. 262: 16241


    Organizational Affiliation

    Department of Physics, University of Oregon, Eugene 97403.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
GLUCOSE-SPECIFIC PHOSPHOCARRIER PROTEIN IIAGLC
A
161Escherichia coli (strain K12)Gene Names: crr (gsr, iex, tgs, treD)
EC: 2.7.1.-
Find proteins for P69783 (Escherichia coli (strain K12))
Go to UniProtKB:  P69783
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • Space Group: H 3
Unit Cell:
Length (Å)Angle (°)
a = 80.300α = 90.00
b = 80.300β = 90.00
c = 86.600γ = 120.00
Software Package:
Software NamePurpose
TNTrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1993-10-31
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2017-11-29
    Type: Derived calculations, Other