1EG7

THE CRYSTAL STRUCTURE OF FORMYLTETRAHYDROFOLATE SYNTHETASE FROM MOORELLA THERMOACETICA


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.301 
  • R-Value Work: 0.253 
  • R-Value Observed: 0.253 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

The crystal structure of N(10)-formyltetrahydrofolate synthetase from Moorella thermoacetica.

Radfar, R.Shin, R.Sheldrick, G.M.Minor, W.Lovell, C.R.Odom, J.D.Dunlap, R.B.Lebioda, L.

(2000) Biochemistry 39: 3920-3926

  • DOI: 10.1021/bi992790z
  • Primary Citation of Related Structures:  
    1EG7

  • PubMed Abstract: 
  • The structure was solved at 2.5 A resolution using multiwavelength anomalous dispersion (MAD) scattering by Se-Met residues. The subunit of N(10)-formyltetrahydrofolate synthetase is composed of three domains organized around three mixed beta-sheets. ...

    The structure was solved at 2.5 A resolution using multiwavelength anomalous dispersion (MAD) scattering by Se-Met residues. The subunit of N(10)-formyltetrahydrofolate synthetase is composed of three domains organized around three mixed beta-sheets. There are two cavities between adjacent domains. One of them was identified as the nucleotide binding site by homology modeling. The large domain contains a seven-stranded beta-sheet surrounded by helices on both sides. The second domain contains a five-stranded beta-sheet with two alpha-helices packed on one side while the other two are a wall of the active site cavity. The third domain contains a four-stranded beta-sheet forming a half-barrel. The concave side is covered by two helices while the convex side is another wall of the large cavity. Arg 97 is likely involved in formyl phosphate binding. The tetrameric molecule is relatively flat with the shape of the letter X, and the active sites are located at the end of the subunits far from the subunit interface.


    Organizational Affiliation

    Department of Chemistry, University of South Carolina, Columbia, South Carolina 29208, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
FORMYLTETRAHYDROFOLATE SYNTHETASEA, B557Moorella thermoaceticaMutation(s): 0 
Gene Names: fhs
EC: 6.3.4.3
Find proteins for P21164 (Moorella thermoacetica)
Explore P21164 
Go to UniProtKB:  P21164
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download CCD File 
A, B
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.301 
  • R-Value Work: 0.253 
  • R-Value Observed: 0.253 
  • Space Group: H 3 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 160.876α = 90
b = 160.876β = 90
c = 256.118γ = 120
Software Package:
Software NamePurpose
SHELXSphasing
CNSrefinement
DENZOdata reduction

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2001-02-14
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Derived calculations, Version format compliance