3MM0

Crystal structure of chimeric avidin


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.7 Å
  • R-Value Free: 0.309 
  • R-Value Work: 0.222 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Chimeric avidin shows stability against harsh chemical conditions-biochemical analysis and 3D structure.

Maatta, J.A.Eisenberg-Domovich, Y.Nordlund, H.R.Hayouka, R.Kulomaa, M.S.Livnah, O.Hytonen, V.P.

(2011) Biotechnol.Bioeng. 108: 481-490

  • DOI: 10.1002/bit.22962

  • PubMed Abstract: 
  • Avidin and its bacterial analog streptavidin have been widely used in applications in life sciences. Recently, we described a highly thermostable engineered avidin, called chimeric avidin, which is a hybrid of avidin and avidin-related protein 4. Her ...

    Avidin and its bacterial analog streptavidin have been widely used in applications in life sciences. Recently, we described a highly thermostable engineered avidin, called chimeric avidin, which is a hybrid of avidin and avidin-related protein 4. Here, we report a protocol for pilot-scale production in E. coli and the X-ray structure of chimeric avidin. The ligand-binding properties of chimeric avidin were explored with isothermal titration calorimetry. We found chimeric avidin to be more stable against various harsh organic solvents at elevated temperatures compared to avidin and streptavidin. The properties of chimeric avidin make it a potential tool for new applications in biotechnology.


    Organizational Affiliation

    Institute of Medical Technology, University of Tampere and Tampere University Hospital, Tampere, Finland.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Avidin, Avidin-related protein 4/5
A, B, C, D, E, F, G, H, I, K, M, N
129Gallus gallusMutation(s): 1 
Gene Names: AVR4, AVR5, AVD
Find proteins for P56734 (Gallus gallus)
Go to UniProtKB:  P56734
Find proteins for P02701 (Gallus gallus)
Go to UniProtKB:  P02701
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.7 Å
  • R-Value Free: 0.309 
  • R-Value Work: 0.222 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 158.657α = 90.00
b = 124.791β = 114.45
c = 88.895γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data reduction
HKL-2000data scaling
AMoREphasing
REFMACrefinement
HKL-2000data collection

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-10-27
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance
  • Version 1.2: 2017-07-26
    Type: Refinement description, Source and taxonomy