1LTQ

CRYSTAL STRUCTURE OF T4 POLYNUCLEOTIDE KINASE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.33 Å
  • R-Value Free: 0.261 
  • R-Value Work: 0.236 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure of a tRNA repair enzyme and molecular biology workhorse: T4 polynucleotide kinase.

Galburt, E.A.Pelletier, J.Wilson, G.Stoddard, B.L.

(2002) Structure 10: 1249-1260


  • PubMed Abstract: 
  • T4 phage polynucleotide kinase (PNK) was identified over 35 years ago and has become a staple reagent for molecular biologists. The enzyme displays 5'-hydroxyl kinase, 3'-phosphatase, and 2',3'-cyclic phosphodiesterase activities against a wide range ...

    T4 phage polynucleotide kinase (PNK) was identified over 35 years ago and has become a staple reagent for molecular biologists. The enzyme displays 5'-hydroxyl kinase, 3'-phosphatase, and 2',3'-cyclic phosphodiesterase activities against a wide range of substrates. These activities modify the ends of nicked tRNA generated by a bacterial response to infection and facilitate repair by T4 RNA ligase. DNA repair enzymes that share conserved motifs with PNK have been identified in eukaryotes. PNK contains two functionally distinct structural domains and forms a homotetramer. The C-terminal phosphatase domain is homologous to the L-2-haloacid dehalogenase family and the N-terminal kinase domain is homologous to adenylate kinase. The active sites have been characterized through structural homology analyses and visualization of bound substrate.


    Organizational Affiliation

    Fred Hutchinson Cancer Research Center and The Graduate Program in Biomolecular Structure and Design, University of Washington, 1100 Fairview Avenue North, A3-023, Seattle, WA 98109, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
POLYNUCLEOTIDE KINASE
A
301Enterobacteria phage T4Mutation(s): 0 
Gene Names: pseT
EC: 2.7.1.78
Find proteins for P06855 (Enterobacteria phage T4)
Go to UniProtKB:  P06855
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ADP
Query on ADP

Download SDF File 
Download CCD File 
A
ADENOSINE-5'-DIPHOSPHATE
C10 H15 N5 O10 P2
XTWYTFMLZFPYCI-KQYNXXCUSA-N
 Ligand Interaction
DMS
Query on DMS

Download SDF File 
Download CCD File 
A
DIMETHYL SULFOXIDE
C2 H6 O S
IAZDPXIOMUYVGZ-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A
L-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.33 Å
  • R-Value Free: 0.261 
  • R-Value Work: 0.236 
  • Space Group: I 2 2 2
Unit Cell:
Length (Å)Angle (°)
a = 78.585α = 90.00
b = 93.684β = 90.00
c = 124.165γ = 90.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
HKL-2000data collection
CNSrefinement
HKL-2000data reduction
CNSphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2002-10-09
    Type: Initial release
  • Version 1.1: 2008-04-28
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Derived calculations, Version format compliance