X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 5.2
Details 20MM SODIUM CITRATE, 0.2M SODIUM POTASSIUM TARTARATE, 10% PEG 6000 PH 5.2

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 86.02 α = 90
b = 37.78 β = 90
c = 32.97 γ = 90
Symmetry
Space Group P 21 21 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH MIRRORS 1998-09-15
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SRS BEAMLINE PX9.5 -- SRS PX9.5

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
2 30 91.1 0.085 -- -- 5.3 -- 6973 -- -- 14.0
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)
2.0 2.06 78.4 -- -- -- -- --

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
MOLECULAR REPLACEMENT 2.0 20.0 -- 0.0 -- 6947 384 91.0 -- 0.235 0.235 0.287 RANDOM
High Resolution Shell
Refinement method Shell Resolution (High) Shell Resolution (Low) # of Reflections (Observed) # of Reflections (R-Free) # of Reflections (R-Work) R-Factor (R-Work) R-Factor (R-Free) R-Factor (R-Free Error) Percent Reflections (Observed)
X Ray Diffraction 2.0 2.13 -- 40 937 0.292 0.334 0.053 79.6
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 26.9
Anisotropic B[1][1] -8.46
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -2.29
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 10.75
RMS Deviations
Key Refinement Restraint Deviation
c_scbond_it 1.73
c_bond_d 0.009
c_mcangle_it 2.14
c_improper_angle_d 1.0
c_mcbond_it 1.28
c_angle_deg 1.5
c_dihedral_angle_d 25.0
c_scangle_it 2.54
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.26
Luzzati Sigma A (Observed) 0.19
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.34
Luzzati Sigma A (R-Free Set) 0.2
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 984
Nucleic Acid Atoms 0
Heterogen Atoms 9
Solvent Atoms 103

Software

Software
Software Name Purpose
CNS refinement version: 0.5
DENZO data reduction
SCALEPACK data scaling
AMoRE phasing