2EQL

CRYSTALLOGRAPHIC STUDIES OF A CALCIUM BINDING LYSOZYME FROM EQUINE MILK AT 2.5 ANGSTROMS RESOLUTION


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Work: 0.234 
  • R-Value Observed: 0.234 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Crystallographic studies of a calcium binding lysozyme from equine milk at 2.5 A resolution.

Tsuge, H.Ago, H.Noma, M.Nitta, K.Sugai, S.Miyano, M.

(1992) J Biochem 111: 141-143

  • DOI: 10.1093/oxfordjournals.jbchem.a123727
  • Primary Citation of Related Structures:  
    2EQL

  • PubMed Abstract: 
  • The crystal structure of a calcium binding equine lysozyme has been determined at 2.5 A resolution by means of molecular replacement. The energy minimized equine lysozyme as the starting model, was refined with the molecular dynamics program, X-PLOR, ...

    The crystal structure of a calcium binding equine lysozyme has been determined at 2.5 A resolution by means of molecular replacement. The energy minimized equine lysozyme as the starting model, was refined with the molecular dynamics program, X-PLOR, and the R factor of the current model was found to be 24% without any water molecules. The conformation of the calcium binding loop is similar to that of alpha-lactalbumin. The profiles of backbone atomic displacements throughout the lysozyme and alpha-lactalbumin superfamilies are comparable as well as their homologous tertiary structures.


    Related Citations: 
    • A Structural Study of Calcium-Binding Equine Lysozyme by Two-Dimensional 1H-NMR
      Tsuge, H., Koseki, K., Miyano, M., Shimazaki, K., Chuman, T., Matsumoto, T., Noma, M., Nitta, K., Sugai, S.
      (1991) Biochim Biophys Acta 1078: 77
    • Calcium-Binding Lysozymes
      Nitta, K., Tsuge, H., Shimazaki, K., Sugai, S.
      (1988) Biol Chem Hoppe Seyler 369: 671
    • The Calcium-Binding Property of Equine Lysozyme
      Nitta, K., Tsuge, H., Sugai, S., Shimazaki, K.
      (1987) FEBS Lett 223: 405

    Organizational Affiliation

    Life Science Research Laboratory, Japan Tobacco, Inc., Kanagawa.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
HORSE MILK LYSOZYMEA129Equus caballusMutation(s): 0 
Gene Names: LYZ
EC: 3.2.1.17
Find proteins for P11376 (Equus caballus)
Explore P11376 
Go to UniProtKB:  P11376
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Work: 0.234 
  • R-Value Observed: 0.234 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 54.1α = 90
b = 57.2β = 90
c = 38.7γ = 90
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
X-PLORphasing

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1994-07-31
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2017-11-29
    Changes: Derived calculations, Other