5LYM

STUDIES OF MONOCLINIC HEN EGG WHITE LYSOZYME. IV. X-RAY REFINEMENT AT 1.8 ANGSTROM RESOLUTION AND A COMPARISON OF THE VARIABLE REGIONS IN THE POLYMORPHIC FORMS


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.264 
  • R-Value Work: 0.189 

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This is version 1.2 of the entry. See complete history

Literature

Studies of monoclinic hen egg-white lysozyme. IV. X-ray refinement at 1.8 A resolution and a comparison of the variable regions in the polymorphic forms.

Rao, S.T.Sundaralingam, M.

(1996) Acta Crystallogr.,Sect.D 52: 170-175

  • DOI: 10.1107/S0907444995009504

  • PubMed Abstract: 
  • Monoclinic crystals of hen egg-white lysozyme (E.C. 3.2.1.17, HEL) grown at low pH in the presence of NaNO(3) belong to space group P2(1) with unit-cell dimensions, a = 28.0, b = 62.5, c = 60.9 A and beta= 90.8 degrees with two molecules in the asymm ...

    Monoclinic crystals of hen egg-white lysozyme (E.C. 3.2.1.17, HEL) grown at low pH in the presence of NaNO(3) belong to space group P2(1) with unit-cell dimensions, a = 28.0, b = 62.5, c = 60.9 A and beta= 90.8 degrees with two molecules in the asymmetric unit. 1.8 A resolution intensity data, collected on a CAD-4 diffractometer, contained 17 524 reflections with F > 3sigma (93% complete). Our earlier preliminary 1.8 A model was refitted and refined using X-PLOR to an R value of 0.189. The deviations in the model from ideal geometry are 0.013 A in bond lengths and 2.8 degrees in bond angles. The r.m.s. deviation in the backbone atoms between the two molecules is 0.42 A. A comparison of HEL in different polymorphic crystal forms reveals that the prominent structural variability among them resides in two exposed regions 45-50 and 65-73 which are also regions of lattice contacts.


    Related Citations: 
    • X-Ray Refinement Studies on Monoclinic Hel Containing Two Independent Molecules at 1.8 Angstrom Resolution
      Yu, C.,Rao, S.T.,Sundaralingam, M.
      () TO BE PUBLISHED --: --
    • The Structure of the Monoclinic Crystal Form of Hen Egg White Lysozyme at 2.5 Angstroms Resolution. Comparison of a Protein Structure in Several Crystalline Environments
      Hogle, J.
      (1978) Thesis --: --
    • Studies of Monoclinic Hen Egg White Lysozyme. I. Structure Solution at 4 Angstroms Resolution and Molecular-Packing Comparisons with Tetragonal and Triclinic Lysozymes
      Hogle, J.,Rao, S.T.,Mallikarjunan, M.,Beddell, C.,Mcmullan, R.K.,Sundaralingam, M.
      (1981) Acta Crystallogr.,Sect.B 37: 591
    • Studies of Monoclinic Hen Egg White Lysozyme. II. The Refinement at 2.5 Angstroms Resolution-Conformational Variability between the Two Independent Molecules
      Rao, S.T.,Hogle, J.,Sundaralingam, M.
      (1983) Acta Crystallogr.,Sect.C 39: 237


    Organizational Affiliation

    Laboratory of Biological Macromolecular Structure, Department of Chemistry, The Ohio State University, Columbus 43210, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
LYSOZYME
A, B
129Gallus gallusGene Names: LYZ
EC: 3.2.1.17
Find proteins for P00698 (Gallus gallus)
Go to Gene View: LYZ
Go to UniProtKB:  P00698
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NO3
Query on NO3

Download SDF File 
Download CCD File 
A, B
NITRATE ION
N O3
NHNBFGGVMKEFGY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.264 
  • R-Value Work: 0.189 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 28.000α = 90.00
b = 62.500β = 90.80
c = 60.900γ = 90.00
Software Package:
Software NamePurpose
X-PLORrefinement
X-PLORphasing
X-PLORmodel building

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1995-10-15
    Type: Initial release
  • Version 1.1: 2008-03-25
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance