1GRC

CRYSTAL STRUCTURE OF GLYCINAMIDE RIBONUCLEOTIDE TRANSFORMYLASE FROM ESCHERICHIA COLI AT 3.0 ANGSTROMS RESOLUTION: A TARGET ENZYME FOR CHEMOTHERAPY


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Work: 0.190 
  • R-Value Observed: 0.190 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Crystal structure of glycinamide ribonucleotide transformylase from Escherichia coli at 3.0 A resolution. A target enzyme for chemotherapy.

Chen, P.Schulze-Gahmen, U.Stura, E.A.Inglese, J.Johnson, D.L.Marolewski, A.Benkovic, S.J.Wilson, I.A.

(1992) J Mol Biol 227: 283-292

  • DOI: 10.1016/0022-2836(92)90698-j
  • Primary Citation of Related Structures:  
    1GRC

  • PubMed Abstract: 
  • The atomic structure of glycinamide ribonucleotide transformylase, an essential enzyme in purine biosynthesis, has been determined at 3.0 A resolution. The last three C-terminal residues and a sequence stretch of 18 residues (residues 113 to 130) are not visible in the electron density map ...

    The atomic structure of glycinamide ribonucleotide transformylase, an essential enzyme in purine biosynthesis, has been determined at 3.0 A resolution. The last three C-terminal residues and a sequence stretch of 18 residues (residues 113 to 130) are not visible in the electron density map. The enzyme forms a dimer in the crystal structure. Each monomer is divided into two domains, which are connected by a central mainly parallel seven-stranded beta-sheet. The N-terminal domain contains a Rossmann type mononucleotide fold with a phosphate ion bound to the C-terminal end of the first beta-strand. A long narrow cleft stretches from the phosphate to a conserved aspartic acid, Asp144, which has been suggested as an active-site residue. The cleft is lined by a cluster of residues, which are conserved between bacterial, yeast, avian and human enzymes, and likely represents the binding pocket and active site of the enzyme. GAR Tfase binds a reduced folate cofactor and glycinamide ribonucleotide for the catalysis of one of the initial steps in purine biosynthesis. Folate analogs and multi-substrate inhibitors of the enzyme have antineoplastic effects and the structure determination of the unliganded enzyme and enzyme-inhibitor complexes will aid the development of anti-cancer drugs.


    Related Citations: 
    • Preliminary Crystallographic Investigations of Glycinamide Ribonucleotide Transformylase in Escherichia Coli K12
      Stura, E.A., Johnson, D.L., Inglese, J., Smith, J.M., Benkovic, S.J., Wilson, I.A.
      (1989) J Biol Chem 264: 9703
    • Identification and Nucleotide Sequence of a Gene Encoding 5'-Phosphoribosyl-Glycinamide Transformylase in Escherichia Coli K12
      Smith, J.M., Daum III, H.A.
      (1987) J Biol Chem 262: 10565

    Organizational Affiliation

    Department of Molecular Biology, Scripps Research Institute, La Jolla, CA 92037.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
GLYCINAMIDE RIBONUCLEOTIDE TRANSFORMYLASE AB212Escherichia coliMutation(s): 0 
EC: 2.1.2.2
Find proteins for P08179 (Escherichia coli (strain K12))
Explore P08179 
Go to UniProtKB:  P08179
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PO4
Query on PO4

Download Ideal Coordinates CCD File 
A, B
PHOSPHATE ION
O4 P
NBIIXXVUZAFLBC-UHFFFAOYSA-K
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Work: 0.190 
  • R-Value Observed: 0.190 
  • Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 140.5α = 90
b = 98.2β = 90
c = 103.3γ = 90
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
X-PLORphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

  • Deposited Date: 1992-07-21 
  • Released Date: 1993-10-31 
  • Deposition Author(s): Chen, P., Wilson, I.A.

Revision History  (Full details and data files)

  • Version 1.0: 1993-10-31
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance