3MM0

Crystal structure of chimeric avidin


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free: 0.309 
  • R-Value Work: 0.222 
  • R-Value Observed: 0.226 

wwPDB Validation   3D Report Full Report


This is version 1.4 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: https://doi.org/10.1002/bit.22962
  • Primary Citation of Related Structures:  
    3MM0

  • 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. 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:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Avidin, Avidin-related protein 4/5129Gallus gallusMutation(s): 1 
Gene Names: AVR4AVR5AVD
UniProt
Find proteins for P56734 (Gallus gallus)
Explore P56734 
Go to UniProtKB:  P56734
Find proteins for P02701 (Gallus gallus)
Explore P02701 
Go to UniProtKB:  P02701
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupsP56734P02701
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free: 0.309 
  • R-Value Work: 0.222 
  • R-Value Observed: 0.226 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 158.657α = 90
b = 124.791β = 114.45
c = 88.895γ = 90
Software Package:
Software NamePurpose
HKL-2000data collection
AMoREphasing
REFMACrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2010-10-27
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2017-07-26
    Changes: Refinement description, Source and taxonomy
  • Version 1.3: 2021-10-06
    Changes: Database references
  • Version 1.4: 2023-09-06
    Changes: Data collection, Refinement description