4FGT

Allosteric peptidic inhibitor of human thymidylate synthase that stabilizes inactive conformation of the enzyme.


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.229 
  • R-Value Work: 0.200 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Alanine mutants of the interface residues of human thymidylate synthase decode key features of the binding mode of allosteric anticancer peptides.

Tochowicz, A.Santucci, M.Saxena, P.Guaitoli, G.Trande, M.Finer-Moore, J.Stroud, R.M.Costi, M.P.

(2015) J.Med.Chem. 58: 1012-1018

  • DOI: 10.1021/jm5011176

  • PubMed Abstract: 
  • Allosteric peptide inhibitors of thymidylate synthase (hTS) bind to the dimer interface and stabilize the inactive form of the protein. Four interface residues were mutated to alanine, and interaction studies were employed to decode the key role of t ...

    Allosteric peptide inhibitors of thymidylate synthase (hTS) bind to the dimer interface and stabilize the inactive form of the protein. Four interface residues were mutated to alanine, and interaction studies were employed to decode the key role of these residues in the peptide molecular recognition. This led to the identification of three crucial interface residues F59, L198, and Y202 that impart activity to the peptide inhibitors and suggest the binding area for further inhibitor design.


    Organizational Affiliation

    Department of Biochemistry and Biophysics, University of California-San Francisco , 600 16th Street, San Francisco, California 94158, United States.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Thymidylate synthase
A
325Homo sapiensMutation(s): 1 
Gene Names: TYMS (TS)
EC: 2.1.1.45
Find proteins for P04818 (Homo sapiens)
Go to Gene View: TYMS
Go to UniProtKB:  P04818
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
CG peptide
D
4N/AMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download SDF File 
Download CCD File 
A
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
CME
Query on CME
A
L-PEPTIDE LINKINGC5 H11 N O3 S2CYS
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.229 
  • R-Value Work: 0.200 
  • Space Group: P 31 2 1
Unit Cell:
Length (Å)Angle (°)
a = 95.807α = 90.00
b = 95.807β = 90.00
c = 83.285γ = 120.00
Software Package:
Software NamePurpose
REFMACrefinement
PHASERphasing
HKL-2000data collection
HKL-2000data scaling
SCALEPACKdata scaling
PDB_EXTRACTdata extraction
DENZOdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-03-06
    Type: Initial release
  • Version 1.1: 2015-02-04
    Type: Database references
  • Version 1.2: 2017-11-15
    Type: Refinement description