Anomalous substructure of alpha-lactalbumin

Experimental Data Snapshot

  • Resolution: 2.30 Å
  • R-Value Free: 0.359 
  • R-Value Work: 0.296 
  • R-Value Observed: 0.297 

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On the routine use of soft X-rays in macromolecular crystallography. Part IV. Efficient determination of anomalous substructures in biomacromolecules using longer X-ray wavelengths.

Mueller-Dieckmann, C.Panjikar, S.Schmidt, A.Mueller, S.Kuper, J.Geerlof, A.Wilmanns, M.Singh, R.K.Tucker, P.A.Weiss, M.S.

(2007) Acta Crystallogr D Biol Crystallogr 63: 366-380

  • DOI: https://doi.org/10.1107/S0907444906055624
  • Primary Citation of Related Structures:  
    2G4H, 2G4I, 2G4J, 2G4K, 2G4L, 2G4M, 2G4N, 2G4O, 2G4P, 2G4Q, 2G4R, 2G4S, 2G4T, 2G4U, 2G4V, 2G4W, 2G4X, 2G4Y, 2G4Z, 2G51, 2G52, 2G55, 2ILL

  • PubMed Abstract: 

    23 different crystal forms of 19 different biological macromolecules were examined with respect to their anomalously scattering substructures using diffraction data collected at a wavelength of 2.0 A (6.2 keV). In more than 90% of the cases the substructure was found to contain more than just the protein S atoms. The data presented suggest that chloride, sulfate, phosphate or metal ions from the buffer or even from the purification protocol are frequently bound to the protein molecule and that these ions are often overlooked, especially if they are not bound at full occupancy. Thus, in order to fully describe the macromolecule under study, it seems desirable that any structure determination be complemented with a long-wavelength data set.

  • Organizational Affiliation

    EMBL Hamburg Outstation, c/o DESY, Notkestrasse 85, D-22603 Hamburg, Germany.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
A, B, C, D, E
A, B, C, D, E, F
123Bos taurusMutation(s): 0 
Find proteins for P00711 (Bos taurus)
Explore P00711 
Go to UniProtKB:  P00711
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP00711
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 2.30 Å
  • R-Value Free: 0.359 
  • R-Value Work: 0.296 
  • R-Value Observed: 0.297 
  • Space Group: P 21 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 68.43α = 90
b = 104.8β = 90
c = 119.11γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
CCP4data scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2007-02-20
    Type: Initial release
  • Version 1.1: 2008-05-01
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Advisory, Version format compliance