7P4Z

Crystal structure of avidin from hen egg white in space group C2


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.291 
  • R-Value Work: 0.247 
  • R-Value Observed: 0.249 

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Ligand Structure Quality Assessment 


This is version 1.2 of the entry. See complete history


Literature

The FUSION protein crystallization screen.

Gorrec, F.Bellini, D.

(2022) J Appl Crystallogr 55: 310-319

  • DOI: https://doi.org/10.1107/S1600576722001765
  • Primary Citation of Related Structures:  
    7P4W, 7P4Z

  • PubMed Abstract: 

    The success and speed of atomic structure determination of biological macromolecules by X-ray crystallography depends critically on the availability of diffraction-quality crystals. However, the process of screening crystallization conditions often consumes large amounts of sample and time. An innovative protein crystallization screen formulation called FUSION has been developed to help with the production of useful crystals. The concept behind the formulation of FUSION was to combine the most efficient components from the three MORPHEUS screens into a single screen using a systematic approach. The resulting formulation integrates 96 unique combinations of crystallization additives. Most of these additives are small molecules and ions frequently found in crystal structures of the Protein Data Bank (PDB), where they bind proteins and complexes. The efficiency of FUSION is demonstrated by obtaining high yields of diffraction-quality crystals for seven different test proteins. In the process, two crystal forms not currently in the PDB for the proteins α-amylase and avidin were discovered.


  • Organizational Affiliation

    Structural Studies, MRC Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge, Cambridgeshire CB2 0QH, United Kingdom.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Avidin
A, B
121Gallus gallusMutation(s): 0 
UniProt
Find proteins for P02701 (Gallus gallus)
Explore P02701 
Go to UniProtKB:  P02701
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP02701
Sequence Annotations
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
NAG
Query on NAG

Download Ideal Coordinates CCD File 
C [auth A],
D [auth B]
2-acetamido-2-deoxy-beta-D-glucopyranose
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.291 
  • R-Value Work: 0.247 
  • R-Value Observed: 0.249 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 114.424α = 90
b = 43.304β = 109.044
c = 62.314γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
PHENIXrefinement
DIALSdata reduction
DIALSdata scaling
MOLREPphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2021-08-25
    Type: Initial release
  • Version 1.1: 2022-05-11
    Changes: Database references
  • Version 1.2: 2024-01-31
    Changes: Data collection, Refinement description