1LPI

HEW LYSOZYME: TRP...NA CATION-PI INTERACTION


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
14.6PROTEIN WAS CRYSTALLIZED FROM 2% NANO3, IN A 100 MM SODIUM ACETATE BUFFER, PH 4.6; THE PROTEIN STOCK SOLUTION CONTAINED 20 MG/ML
Crystal Properties
Matthews coefficientSolvent content
2.0740.52

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 79.1α = 90
b = 79.1β = 90
c = 37.9γ = 90
Symmetry
Space GroupP 43 21 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray278IMAGE PLATEMARRESEARCH1995-09-26M
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONEMBL/DESY, HAMBURG BEAMLINE BW7BEMBL/DESY, HAMBURGBW7B

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (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
121898.50.09614.084.67717
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R-Sym I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
2399.090.18810.01

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Number Reflections (All)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (All)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONFREE R-VALUEPDB ENTRY 1HEL2187695153978.80.18530.17120.2689SHELLS
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]
Coordinate Error
Structure Solution MethodRefinement High ResolutionRefinement Low Resolution
1092
RMS Deviations
KeyRefinement Restraint Deviation
s_from_restr_planes0.313
s_non_zero_chiral_vol0.079
s_zero_chiral_vol0.074
s_similar_adp_cmpnt0.039
s_angle_d0.02
s_anti_bump_dis_restr0.01
s_bond_d0.005
s_similar_dist
s_rigid_bond_adp_cmpnt
s_approx_iso_adps
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms1001
Nucleic Acid Atoms
Solvent Atoms89
Heterogen Atoms1

Software

Software
Software NamePurpose
MOSFLMdata reduction
SCALEPACKdata scaling
SHELXL-96model building
SHELXL-96refinement
SHELXL-96phasing