2CFJ

Phosphorylation of the Cytoplasmic Tail of Tissue Factor and its Role in Modulating Structure and Binding Affinity


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 50 
  • Conformers Submitted: 10 
  • Selection Criteria: LOWEST POTENTIAL ENERGY ENSEMBLES 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Spectroscopic Characterization of Successive Phosphorylation of the Tissue Factor Cytoplasmic Region.

Sen, M.Herzik, M.Craft, J.W.Creath, A.L.Agrawal, S.Ruf, W.Legge, G.B.

(2009) Open Spectrosc.J. 3: 58

  • DOI: 10.2174/1874383800903010058
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Tissue Factor (TF) is well known for its role during the activation of the coagulation pathway, but it is also critical for tumor biology and inflammation through protease activated receptor (PAR) 2 signaling. This signaling function is modulated by ...

    Tissue Factor (TF) is well known for its role during the activation of the coagulation pathway, but it is also critical for tumor biology and inflammation through protease activated receptor (PAR) 2 signaling. This signaling function is modulated by the successive phosphorylation of residues Ser253 and Ser258 within the TF cytoplasmic region (TFCR). This paper reports how we used NMR and spectroscopic methods to investigate the structural propensities of the unphosphorylated and phosphorylated forms of the TFCR. When unphosphorylated, the TFCR forms a local hydrophobic collapse around Trp254 and an electropositive patch from the membrane proximal basic block (Arg246-Lys247) to the conserved PKCalpha consensus residue Lys255. Phosphorylation of Ser253 alters the charge characteristics of this membrane proximal region, thereby strengthening the interaction between residue Ala248 and the Trp254 aromatic group. Phosphorylation of the Ser258-Pro259 motif destabilizes a turn at the C-terminus to form an extended polyproline helical motif. Our data suggests that by changing both its charge and local structural propensity, covalent modifications of the TFCR can potentially regulate its association with the cellular membrane and its signaling partners.


    Organizational Affiliation

    University of Houston, Department of Biology and Biochemistry, Houston, TX 77204-5001, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
TISSUE FACTOR
A
19Homo sapiensMutation(s): 0 
Gene Names: F3
Find proteins for P13726 (Homo sapiens)
Go to Gene View: F3
Go to UniProtKB:  P13726
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
SEP
Query on SEP
A
L-PEPTIDE LINKINGC3 H8 N O6 PSER
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 50 
  • Conformers Submitted: 10 
  • Selection Criteria: LOWEST POTENTIAL ENERGY ENSEMBLES 
  • Olderado: 2CFJ Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2007-03-20
    Type: Initial release
  • Version 1.1: 2012-12-05
    Type: Atomic model, Database references, Derived calculations, Non-polymer description, Other, Structure summary, Version format compliance