1BWH

THE 1.8 A STRUCTURE OF GROUND CONTROL GROWN TETRAGONAL HEN EGG WHITE LYSOZYME


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 193LPDB ENTRY 193L

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
14.7CRYSTALLISATION TOOK PLACE AS A GROUND CONTROL TO HEWL CRYSTALLISATION IN THE EUROPEAN SPACE AGENCY (ESA) ADVANCED PROTEIN CRYSTALLISATION FACILITY (APCF) ONBOARD THE NASA SPACE SHUTTLE'S LIFE AND MICROGRAVITY SPACELAB (LMS) MISSION (STS-78). A SOLUTION OF 21 MG OF HEN EGG WHITE LYSOZYME (3 X CRYSTALLIZED, DIALYSED AND LYOPHILIZED POWDER OF CHICKEN EGG WHITE LYSOZYME SUPPLIED BY SIGMA, L-6876 BATCH NUMBER, LOT 53H7145) DISSOLVED IN 250 UL 0.04 M ACETATE BUFFER (PH 4.7) WAS USED TO FILL THE PROTEIN CHAMBER (188 UL). THE SALT CHAMBERS (541 UL) WERE FILLED WITH 1.35 M NACL AND THE BUFFER CHAMBER (59 UL) WITH 0.04 M ACETATE BUFFER (PH 4.7). SODIUM AZIDE WAS ALSO ADDED TO THE PROTEIN AND BUFFER SOLUTION AS AN ANTI-FUNGAL AGENT (1.92 MG PER 188 UL). CRYSTALLISATION TOOK PLACE AT 20+/-1 C.
Crystal Properties
Matthews coefficientSolvent content
2.0840.86

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 79.266α = 90
b = 79.266β = 90
c = 37.956γ = 90
Symmetry
Space GroupP 43 21 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray293IMAGE PLATERIGAKU RAXIS IICMSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1ROTATING ANODERIGAKU RU200

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (Observed)R Sym I (Observed)Net I Over Average Sigma (I)RedundancyNumber Reflections (All)Number Reflections (Observed)Observed Criterion Sigma (F)Observed Criterion Sigma (I)B (Isotropic) From Wilson Plot
11.79988.80.0690.074225.912309

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUTPDB ENTRY 193L1.82010967940.1840.1840.233RANDOM23.2
Temperature Factor Modeling
Anisotropic B[1][1]Anisotropic B[1][2]Anisotropic B[1][3]Anisotropic B[2][2]Anisotropic B[2][3]Anisotropic B[3][3]
RMS Deviations
KeyRefinement Restraint Deviation
x_dihedral_angle_d21.92
x_angle_deg1.566
x_improper_angle_d1.082
x_bond_d0.007
x_bond_d_na
x_bond_d_prot
x_angle_d
x_angle_d_na
x_angle_d_prot
x_angle_deg_na
RMS Deviations
KeyRefinement Restraint Deviation
x_dihedral_angle_d21.92
x_angle_deg1.566
x_improper_angle_d1.082
x_bond_d0.007
x_bond_d_na
x_bond_d_prot
x_angle_d
x_angle_d_na
x_angle_d_prot
x_angle_deg_na
x_angle_deg_prot
x_dihedral_angle_d_na
x_dihedral_angle_d_prot
x_improper_angle_d_na
x_improper_angle_d_prot
x_mcbond_it
x_mcangle_it
x_scbond_it
x_scangle_it
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms1001
Nucleic Acid Atoms
Solvent Atoms92
Heterogen Atoms

Software

Software
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
X-PLORrefinement