Biological Assembly 1  

 3D View: Structure | Electron Density | Ligand Interaction

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Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 30819.69 
• Atom Count: 2033 
• Residue Count: 258 
• Unique protein chains: 1

1B2K

Structural effects of monovalent anions on polymorphic lysozyme crystals

• DOI: 10.2210/pdb1B2K/pdb

• Classification: HYDROLASE
• Organism(s): Gallus gallus


• Deposited: 1998-11-26 Released: 1998-12-02 
• Deposition Author(s): Vaney, M.C., Broutin, I., Ries-Kautt, M., Ducruix, A.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.6 Å
• R-Value Free: 0.237 
• R-Value Work: 0.198 

Literature

Structural effects of monovalent anions on polymorphic lysozyme crystals.

Vaney, M.C., Broutin, I., Retailleau, P., Douangamath, A., Lafont, S., Hamiaux, C., Prange, T., Ducruix, A., Ries-Kautt, M.

(2001) Acta Crystallogr.,Sect.D 57: 929-940

• PubMed: 11418760 
• Primary Citation of Related Structures:  
  1LCN, 1HF4, 1B0D


• PubMed Abstract: 
  

Understanding direct salt effects on protein crystal polymorphism is addressed by comparing different crystal forms (triclinic, monoclinic, tetragonal and orthorhombic) for hen, turkey, bob white quail and human lysozymes. Four new structures of hen egg-white lysozyme are reported: crystals grown in the presence of NapTS diffracted to 1.85 A, of NaI to 1.6 A, of NaNO(3) to 1.45 A and of KSCN to 1.63 A. These new structures are compared with previously published structures in order to draw a mapping of the surface of different lysozymes interacting with monovalent anions, such as nitrate, chloride, iodide, bromide and thiocyanate. An analysis of the structural sites of these anions in the various lysozyme structures is presented. This study shows common anion sites whatever the crystal form and the chemical nature of anions, while others seem specific to a given geometry and a particular charge environment induced by the crystal packing.

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Related Citations: 

• Locations of Bromide Ions in Tetragonal Lysozyme Crystals
  Lim, K.,Nadarajah, A.,Forsythe, E.L.,Pusey, M.L.
  (1998) Acta Crystallogr.,Sect.D D54: 899
• High-Resolution Structure (1.33 Ang.) Of a Hewl Lysozyme Tetragonal Crystal Grown in the Apcf Apparatus. Data and Structural Comparison with a Crystal Grown Under Microgravity from Spachab-01 Mission
  Vaney, M.C.,Maignan, S.,Ries-Kautt, M.,Ducruix, A.
  (1996) Acta Crystallogr.,Sect.D D52: 505
• Refinement of Triclinic Hen Egg-White Lysozyme at Atomic Resolution
  Walsh, M.A.,Schneider, T.R.,Sieker, L.C.,Dauter, Z.,Lamzin, V.S.,Wilson, K.S.
  (1998) Acta Crystallogr.,Sect.D D54: 522
• Structures of Monoclinic Lysozyme Iodide at 1.6 Ang. And of Triclinic Lysozyme Nitrate at 1.1 Ang
  Steinrauf, L.K.
  (1998) Acta Crystallogr.,Sect.D D54: 767




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Organizational Affiliation: 

Laboratoire de Cristallographie et RMN Biologiques, CNRS-UMR 8015, Faculté de Pharmacie, 4 Avenue de l'Observatoire, 75006 Paris, France.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
PROTEIN (LYSOZYME)	A, B	129	Gallus gallus	Mutation(s): 0  Gene 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
ID	Chains	Name / Formula / InChI Key	2D Diagram & Interactions
IOD	A, B	IODIDE ION I XMBWDFGMSWQBCA-UHFFFAOYSA-M

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.6 Å
• R-Value Free: 0.237 
• R-Value Work: 0.198 
• Space Group: P 1 2₁ 1

Unit Cell:

Length (Å)	Angle (°)
a = 27.730	α = 90.00
b = 62.790	β = 90.10
c = 59.840	γ = 90.00

Software Package:

Software Name	Purpose
AMoRE	phasing
Agrovata	data reduction
MOSFLM	data reduction
X-PLOR	refinement
CCP4	data reduction
Agrovata	data scaling

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 1998-11-26 
• Released Date: 1998-12-02 
• Deposition Author(s): Vaney, M.C., Broutin, I., Ries-Kautt, M., Ducruix, A.

Revision History 

• Version 1.0: 1998-12-02
  Type: Initial release
• Version 1.1: 2008-04-26
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Version format compliance
• Version 1.3: 2017-10-04
  Type: Refinement description