1TIS

CRYSTAL STRUCTURE OF THYMIDYLATE SYNTHASE FROM T4 PHAGE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.7 Å
  • R-Value Work: 0.199 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal structure of thymidylate synthase from T4 phage: component of a deoxynucleoside triphosphate-synthesizing complex.

Finer-Moore, J.S.Maley, G.F.Maley, F.Montfort, W.R.Stroud, R.M.

(1994) Biochemistry 33: 15459-15468


  • PubMed Abstract: 
  • Thymidylate synthase from phage T4 (T4TS) is part of a complex of several enzymes required for coordinate DNA synthesis in infected Escherichia coli cells. It has been proposed that similar complexes of enzymes related to DNA synthesis are also funct ...

    Thymidylate synthase from phage T4 (T4TS) is part of a complex of several enzymes required for coordinate DNA synthesis in infected Escherichia coli cells. It has been proposed that similar complexes of enzymes related to DNA synthesis are also functional in eukaryotes [Pardee, A. B. (1989) Science 246, 603-608]. To delineate the role of structure in the function of this complex, we have solved the structure of T4TS as a basis for mapping the complex by mutagenesis. The 3.1 A structure of the unliganded enzyme was determined by molecular replacement and refined to 19.9% for all data. Three inserts and one deletion in the coding region are unique to T4TS, and all sites lie on one side of the enzyme surface, possibly encoding unique T4 specific intermolecular interactions during the infective cycle. The crystal structure is generally in the open, unliganded conformation seen in unliganded E. coli TS, as opposed to the closed, ternary complex conformation, except that the critically important C-terminus is inserted into the active site hydrogen bonded to residue Asn85, as seen in functional ternary complex structures. Other differences between E. coli TS and T4TS appear to explain the enhanced binding of folyl polyglutamate to the latter.


    Related Citations: 
    • Atomic Structure of Thymidylate Synthase: Target for Rational Drug Design
      Hardy, L.W.,Finer-Moore, J.S.,Montfort, W.R.,Jones, M.O.,Santi, D.V.,Stroud, R.M.
      (1987) Science 235: 449
    • Structure, Multiple Site Binding, and Segmental Accommodation in Thymidylate Synthase on Binding Dump and an Anti-Folate
      Montfort, W.R.,Perry, K.M.,Fauman, E.B.,Finer-Moore, J.S.,Maley, G.F.,Hardy, L.,Maley, F.,Stroud, R.M.
      (1990) Biochemistry 29: 6964
    • Crystal Structure of a Misfolded Protein: Human Thymidylate Synthase
      Schiffer, C.A.,Clifton, I.J.,Davisson, V.J.,Hadju, J.,Santi, D.V.,Stroud, R.M.
      () TO BE PUBLISHED --: --


    Organizational Affiliation

    Department of Biochemistry and Biophysics, University of California at San Francisco 94143-0448.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
THYMIDYLATE SYNTHASE
A
286Enterobacteria phage T4Mutation(s): 0 
Gene Names: TD
EC: 2.1.1.45
Find proteins for P00471 (Enterobacteria phage T4)
Go to UniProtKB:  P00471
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PO4
Query on PO4

Download SDF File 
Download CCD File 
A
PHOSPHATE ION
O4 P
NBIIXXVUZAFLBC-UHFFFAOYSA-K
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.7 Å
  • R-Value Work: 0.199 
  • Space Group: P 43 21 2
Unit Cell:
Length (Å)Angle (°)
a = 68.020α = 90.00
b = 68.020β = 90.00
c = 140.800γ = 90.00
Software Package:
Software NamePurpose
X-PLORrefinement
X-PLORmodel building
X-PLORphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1994-04-30
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Derived calculations, Version format compliance