1B9L

7,8-DIHYDRONEOPTERIN TRIPHOSPHATE EPIMERASE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.9 Å
  • R-Value Free: 0.259 
  • R-Value Work: 0.188 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal structure of 7,8-dihydroneopterin triphosphate epimerase.

Ploom, T.Haussmann, C.Hof, P.Steinbacher, S.Bacher, A.Richardson, J.Huber, R.

(1999) Structure Fold.Des. 7: 509-516


  • PubMed Abstract: 
  • Dihydroneopterin triphosphate (H2NTP) is the central substrate in the biosynthesis of folate and tetrahydrobiopterin. Folate serves as a cofactor in amino acid and purine biosynthesis and tetrahydrobiopterin is used as a cofactor in amino acid hydrox ...

    Dihydroneopterin triphosphate (H2NTP) is the central substrate in the biosynthesis of folate and tetrahydrobiopterin. Folate serves as a cofactor in amino acid and purine biosynthesis and tetrahydrobiopterin is used as a cofactor in amino acid hydroxylation and nitric oxide synthesis. In bacteria, H2NTP enters the folate biosynthetic pathway after nonenzymatic dephosphorylation; in vertebrates, H2NTP is used to synthesize tetrahydrobiopterin. The dihydroneopterin triphosphate epimerase of Escherichia coli catalyzes the inversion of carbon 2' of H2NTP.


    Organizational Affiliation

    Max-Planck-Institut für Biochemie, Abteilung Strukturforschung, Martins Germany. ploom@biochem.mpg.de




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PROTEIN (EPIMERASE)
A, B, C, D, E, F, G, H
120Escherichia coli (strain K12)Gene Names: folX
EC: 5.1.99.-
Find proteins for P0AC19 (Escherichia coli (strain K12))
Go to UniProtKB:  P0AC19
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.9 Å
  • R-Value Free: 0.259 
  • R-Value Work: 0.188 
  • Space Group: P 41
Unit Cell:
Length (Å)Angle (°)
a = 69.680α = 90.00
b = 69.680β = 90.00
c = 239.720γ = 90.00
Software Package:
Software NamePurpose
X-PLORrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2000-02-18
    Type: Initial release
  • Version 1.1: 2008-04-26
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Derived calculations, Version format compliance