X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 4.6
Temperature 291.0
Details 25% POLYETHYLENE GLYCOL 4000, 0.2 M AMMONIUM SULFATE, 0.1 M NA-ACETATE, PROTEIN CONCENTRATION 6 mg/ml MIXED 1:1 WITH CRYSTALLIZATION SOLUTION, pH 4.6, VAPOR DIFFUSION, HANGING DROP, temperature 291K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 59.24 α = 90
b = 81.53 β = 90
c = 86.46 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 1999-08-12
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON EMBL/DESY, HAMBURG BEAMLINE BW7B -- EMBL/DESY, Hamburg BW7B

Data Collection

Overall
Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge I (Observed) R Sym I (Observed) Net I Over Average Sigma (I) Redundancy Number Reflections (All) Number Reflections (Observed) Observed Criterion Sigma (F) Observed Criterion Sigma (I) B (Isotropic) From Wilson Plot
1.85 20 96.2 0.079 -- -- 2.6 66464 66464 0.0 0.0 25.657
High Resolution Shell
Resolution (High) Resolution (Low) Percent Possible (All) R Merge I (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All)
1.85 1.9 87.7 0.337 -- -- 2.0 4665

Refinement

Statistics
Structure Solution Method Refinement High Resolution Refinement Low Resolution Cut-off Sigma (I) Cut-off Sigma (F) Number of Reflections (All) Number of Reflections (Observed) Number of Reflections (R-Free) Percent Reflections (Observed) R-Factor (All) R-Factor (Observed) R-Work R-Free R-Free Selection Details
-- 1.9 20.0 0.0 0.0 66464 66464 1330 96.2 0.199 0.199 0.198 0.232 2% of the dataset
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 23.53
Anisotropic B[1][1] 2.15
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -2.65
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 0.5
RMS Deviations
Key Refinement Restraint Deviation
c_improper_angle_d 0.83
c_bond_d 0.007
c_angle_d 1.333
c_dihedral_angle_d 21.5
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.22
Luzzati Sigma A (Observed) 0.21
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.25
Luzzati Sigma A (R-Free Set) 0.25
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3267
Nucleic Acid Atoms 0
Heterogen Atoms 31
Solvent Atoms 287

Software

Software
Software Name Purpose
SHARP phasing
CNS refinement version: 0.9
MAR data reduction
XDS data scaling