1E3H

SeMet derivative of Streptomyces antibioticus PNPase/GPSI enzyme


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.226 
  • R-Value Work: 0.201 
  • R-Value Observed: 0.201 

wwPDB Validation   3D Report Full Report


This is version 1.4 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

  • DOI: 10.1016/s0969-2126(00)00521-9
  • Primary Citation of Related Structures:  
    1E3P, 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.2.7 ...

    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:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
GUANOSINE PENTAPHOSPHATE SYNTHETASE A757Streptomyces antibioticusMutation(s): 18 
Gene Names: GPSIpnp
EC: 2.7.7.8 (PDB Primary Data), 2.7.6.5 (PDB Primary Data)
Find proteins for Q53597 (Streptomyces antibioticus)
Explore Q53597 
Go to UniProtKB:  Q53597
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.226 
  • R-Value Work: 0.201 
  • R-Value Observed: 0.201 
  • Space Group: H 3 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 133.61α = 90
b = 133.61β = 90
c = 344.47γ = 120
Software Package:
Software NamePurpose
DENZOdata reduction
SCALAdata scaling
CNSphasing
SHARPphasing
CNSrefinement

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2000-11-05
    Type: Initial release
  • Version 1.1: 2011-05-08
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2019-07-24
    Changes: Data collection, Derived calculations
  • Version 1.4: 2019-11-06
    Changes: Data collection, Database references, Other