4HAA

Structure of Ribonuclease Binase Glu43Ala/Phe81Ala Mutant


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.205 
  • R-Value Work: 0.177 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure and functional studies of the ribonuclease binase Glu43Ala/Phe81Ala mutant.

Mitkevich, V.A.Schulga, A.A.Trofimov, A.A.Dorovatovskii, P.V.Goncharuk, D.A.Tkach, E.N.Makarov, A.A.Polyakov, K.M.

(2013) Acta Crystallogr.,Sect.D 69: 991-996

  • DOI: 10.1107/S0907444913004046

  • PubMed Abstract: 
  • Ribonuclease from Bacillus intermedius (binase) is a small basic protein with antitumour activity. The three-dimensional structure of the binase mutant form Glu43Ala/Phe81Ala was determined at 1.98 Å resolution and its functional properties, such as ...

    Ribonuclease from Bacillus intermedius (binase) is a small basic protein with antitumour activity. The three-dimensional structure of the binase mutant form Glu43Ala/Phe81Ala was determined at 1.98 Å resolution and its functional properties, such as the kinetic parameters characterizing the hydrolysis of polyinosinic acid and cytotoxicity towards Kasumi-1 cells, were investigated. In all crystal structures of binase studied previously the characteristic dimer is present, with the active site of one subunit being blocked owing to interactions within the dimer. In contrast to this, the new mutant form is not dimeric in the crystal. The catalytic efficiency of the mutant form is increased 1.7-fold and its cytotoxic properties are enhanced compared with the wild-type enzyme.


    Organizational Affiliation

    Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, ul. Vavilova 32, Moscow 119991, Russian Federation.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Ribonuclease
A, B, C, D
109Bacillus intermediusMutation(s): 2 
EC: 3.1.27.-
Find proteins for P00649 (Bacillus intermedius)
Go to UniProtKB:  P00649
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.205 
  • R-Value Work: 0.177 
  • Space Group: P 43
Unit Cell:
Length (Å)Angle (°)
a = 50.360α = 90.00
b = 50.360β = 90.00
c = 196.120γ = 90.00
Software Package:
Software NamePurpose
XDSdata reduction
XSCALEdata scaling
MOLREPphasing
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-10-17
    Type: Initial release
  • Version 1.1: 2013-05-29
    Type: Database references
  • Version 1.2: 2014-02-05
    Type: Database references