1CFR

CRYSTAL STRUCTURE OF CITROBACTER FREUNDII RESTRICTION ENDONUCLEASE CFR10I AT 2.15 ANGSTROMS RESOLUTION.


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.15 Å
  • R-Value Work: 0.196 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal structure of Citrobacter freundii restriction endonuclease Cfr10I at 2.15 A resolution.

Bozic, D.Grazulis, S.Siksnys, V.Huber, R.

(1996) J.Mol.Biol. 255: 176-186

  • DOI: 10.1006/jmbi.1996.0015

  • PubMed Abstract: 
  • The X-ray crystal structure of Citrobacter freundii restriction endonuclease Cfr10I has been determined at a resolution of 2.15 A by multiple isomorphous replacement methods and refined to an R-factor of 19.64%. The structure of Cfr10I represents the ...

    The X-ray crystal structure of Citrobacter freundii restriction endonuclease Cfr10I has been determined at a resolution of 2.15 A by multiple isomorphous replacement methods and refined to an R-factor of 19.64%. The structure of Cfr10I represents the first structure of a restriction endonuclease recognizing a degenerated nucleotide sequence. Structural comparison of Cfr10I with previously solved structures of other restriction enzymes suggests that recognition of specific sequence occurs through contacts in the major and the minor grooves of DNA. The arrangement of the putative active site residues shows some striking differences from previously described restriction endonucleases and supports a two-metal-ion mechanism of catalysis.


    Organizational Affiliation

    Max-Planck-Institut für Biochemie, Planegg-Martinsried Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
RESTRICTION ENDONUCLEASE
A
285Citrobacter freundiiMutation(s): 0 
Gene Names: cfr10IR
EC: 3.1.21.4
Find proteins for P56200 (Citrobacter freundii)
Go to UniProtKB:  P56200
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.15 Å
  • R-Value Work: 0.196 
  • Space Group: I 2 2 2
Unit Cell:
Length (Å)Angle (°)
a = 64.500α = 90.00
b = 81.300β = 90.00
c = 119.700γ = 90.00
Software Package:
Software NamePurpose
X-PLORphasing
X-PLORmodel building
X-PLORrefinement
ROTAVATA)data scaling
MOSFLMdata reduction
CCP4data scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1997-01-27
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Derived calculations, Version format compliance