2FOK

STRUCTURE OF RESTRICTION ENDONUCLEASE FOKI


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.306 
  • R-Value Work: 0.211 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure of FokI has implications for DNA cleavage.

Wah, D.A.Bitinaite, J.Schildkraut, I.Aggarwal, A.K.

(1998) Proc.Natl.Acad.Sci.Usa 95: 10564-10569


  • PubMed Abstract: 
  • FokI is a member an unusual class of restriction enzymes that recognize a specific DNA sequence and cleave nonspecifically a short distance away from that sequence. FokI consists of an N-terminal DNA recognition domain and a C-terminal cleavage domai ...

    FokI is a member an unusual class of restriction enzymes that recognize a specific DNA sequence and cleave nonspecifically a short distance away from that sequence. FokI consists of an N-terminal DNA recognition domain and a C-terminal cleavage domain. The bipartite nature of FokI has led to the development of artificial enzymes with novel specificities. We have solved the structure of FokI to 2.3 A resolution. The structure reveals a dimer, in which the dimerization interface is mediated by the cleavage domain. Each monomer has an overall conformation similar to that found in the FokI-DNA complex, with the cleavage domain packing alongside the DNA recognition domain. In corroboration with the cleavage data presented in the accompanying paper in this issue of Proceedings, we propose a model for FokI DNA cleavage that requires the dimerization of FokI on DNA to cleave both DNA strands.


    Related Citations: 
    • FokI Dimerization is Required for DNA Cleavage
      Bitinaite, J.,Wah, D.A.,Aggarwal, A.K.,Schildkraut, I.
      (1998) Proc.Natl.Acad.Sci.USA 95: 10570


    Organizational Affiliation

    Structural Biology Program, Department of Physiology and Biophysics, Box 1677, 1425 Madison Avenue, Mount Sinai School of Medicine, New York, NY 10029, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
FOKI RESTRICTION ENDONUCLEASE
A, B
579Planomicrobium okeanokoitesMutation(s): 0 
Gene Names: fokIR (rfoKI)
EC: 3.1.21.4
Find proteins for P14870 (Planomicrobium okeanokoites)
Go to UniProtKB:  P14870
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.306 
  • R-Value Work: 0.211 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 54.010α = 90.00
b = 137.170β = 90.00
c = 188.870γ = 90.00
Software Package:
Software NamePurpose
X-PLORmodel building
DENZOdata reduction
X-PLORphasing
X-PLORrefinement
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1998-06-17
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance