1GLE

CATION PROMOTED ASSOCIATION (CPA) OF A REGULATORY AND TARGET PROTEIN IS CONTROLLED BY PHOSPHORYLATION


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.94 Å
  • R-Value Observed: 0.149 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Cation-promoted association of a regulatory and target protein is controlled by protein phosphorylation.

Feese, M.Pettigrew, D.W.Meadow, N.D.Roseman, S.Remington, S.J.

(1994) Proc Natl Acad Sci U S A 91: 3544-3548

  • Primary Citation of Related Structures:  
    1GLE, 1GLD, 1GLC

  • PubMed Abstract: 
  • A central question in molecular biology concerns the means by which a regulatory protein recognizes different targets. IIIGlc, the glucose-specific phosphocarrier protein of the bacterial phosphotransferase system, is also the central regulatory elem ...

    A central question in molecular biology concerns the means by which a regulatory protein recognizes different targets. IIIGlc, the glucose-specific phosphocarrier protein of the bacterial phosphotransferase system, is also the central regulatory element of the PTS. Binding of unphosphorylated IIIGlc inhibits several non-PTS proteins, but there is little or no sequence similarity between IIIGlc binding sites on different target proteins. The crystal structure of Escherichia coli IIIGlc bound to one of its regulatory targets, glycerol kinase, has been refined at 2.6-A resolution in the presence of products, adenosine diphosphate and glycerol 3-phosphate. Structural and kinetic analyses show that the complex of IIIGlc with glycerol kinase creates an intermolecular Zn(II) binding site with ligation identical to that of the zinc peptidase thermolysin. The zinc is coordinated by the two active-site histidines of IIIGlc, a glutamate of glycerol kinase, and a water molecule. Zn(II) at 0.01 and 0.1 mM decreases the Ki of IIIGlc for glycerol kinase by factors of about 15 and 60, respectively. The phosphorylation of one of the histidines of IIIGlc, in its alternative role as phosphocarrier, provides an elegant means of controlling the cation-enhanced protein-protein regulatory interaction. The need for the target protein to supply only one metal ligand may account for the lack of sequence similarity among the regulatory targets of IIIGlc.


    Related Citations: 
    • Three-Dimensional Structure of the Regulatory Complex of Escherichia Coli III-Glc with Glycerol Kinase
      Hurley, J.H., Worthylake, D., Faber, H.R., Meadow, N.D., Roseman, S., Pettigrew, D.W., Remington, S.J.
      (1993) Science 259: 673

    Organizational Affiliation

    Institute of Molecular Biology, University of Oregon, Eugene 97403.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
GLUCOSE-SPECIFIC PROTEIN IIIGlcF168Escherichia coliMutation(s): 0 
EC: 2.7.1.69
Find proteins for P69783 (Escherichia coli (strain K12))
Explore P69783 
Go to UniProtKB:  P69783
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
GLYCEROL KINASEG501Escherichia coliMutation(s): 0 
EC: 2.7.1.30
Find proteins for P0A6F3 (Escherichia coli (strain K12))
Explore P0A6F3 
Go to UniProtKB:  P0A6F3
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ADP
Query on ADP

Download CCD File 
G
ADENOSINE-5'-DIPHOSPHATE
C10 H15 N5 O10 P2
XTWYTFMLZFPYCI-KQYNXXCUSA-N
 Ligand Interaction
G3H
Query on G3H

Download CCD File 
G
GLYCERALDEHYDE-3-PHOSPHATE
C3 H7 O6 P
LXJXRIRHZLFYRP-VKHMYHEASA-N
 Ligand Interaction
ZN
Query on ZN

Download CCD File 
F, G
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.94 Å
  • R-Value Observed: 0.149 
  • Space Group: I 2 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 124.03α = 90
b = 125.11β = 90
c = 133.33γ = 90
Software Package:
Software NamePurpose
TNTrefinement

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1994-05-31
    Type: Initial release
  • Version 1.1: 2008-03-03
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Derived calculations, Version format compliance
  • Version 1.3: 2017-11-29
    Changes: Derived calculations, Other