1E3P

tungstate derivative of Streptomyces antibioticus PNPase/GPSI enzyme


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.247 
  • R-Value Work: 0.213 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

A Duplicated Fold is the Structural Basis for Polynucleotide Phosphorylase Catalytic Activity, Processivity, and Regulation

Symmons, M.F.Jones, G.H.Luisi, B.F.

(2000) Structure 8: 1215

  • Primary Citation of Related Structures:  1E3H

  • PubMed Abstract: 
  • Polynucleotide phosphorylase (PNPase) is a polyribonucleotide nucleotidyl transferase (E.C.2.7.7.8) that degrades mRNA in prokaryotes. Streptomyces antibioticus PNPase also assays as a guanosine 3'-diphosphate 5'-triphosphate (pppGpp) synthetase (E.C ...

    Polynucleotide phosphorylase (PNPase) is a polyribonucleotide nucleotidyl transferase (E.C.2.7.7.8) that degrades mRNA in prokaryotes. Streptomyces antibioticus PNPase also assays as a guanosine 3'-diphosphate 5'-triphosphate (pppGpp) synthetase (E.C.2.7.6.5). It may function to coordinate changes in mRNA lifetimes with pppGpp levels during the Streptomyces lifecycle.


    Organizational Affiliation

    Department of Biochemistry, University of Cambridge, Cambridge, United Kingdom. mfs@mole.bio.cam.ac.uk




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
GUANOSINE PENTAPHOSPHATE SYNTHETASE
A
757Streptomyces antibioticusGene Names: pnp
EC: 2.7.7.8
Find proteins for Q53597 (Streptomyces antibioticus)
Go to UniProtKB:  Q53597
Small Molecules
Ligands 2 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
WO4
Query on WO4

Download SDF File 
Download CCD File 
A
TUNGSTATE(VI)ION
O4 W
PBYZMCDFOULPGH-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.247 
  • R-Value Work: 0.213 
  • Space Group: H 3 2
Unit Cell:
Length (Å)Angle (°)
a = 130.830α = 90.00
b = 130.830β = 90.00
c = 328.732γ = 120.00
Software Package:
Software NamePurpose
CNSrefinement
DENZOdata reduction
CNSphasing
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2000-11-03
    Type: Initial release
  • Version 1.1: 2011-05-08
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance