X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 6
Details 20% PEG6000, 20MM MES BUFFER PH6.0, 10MM COCL2., pH 6.00

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 48.5 α = 90
b = 74.69 β = 103.19
c = 91.14 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU IMAGE PLATE MIRRORS 1995-12-31
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU -- -- --

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
2.1 44.3 100.0 0.061 -- -- 3.4 -- 36553 -- -- 19.8
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)
2.1 2.18 100.0 0.158 -- 6.7 3.3 --

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 2.1 20.0 -- 0.0 -- 36490 1427 98.8 -- 0.181 0.181 0.221 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 2.1 2.23 -- 229 5339 0.195 0.232 0.015 90.9
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 18.1
Anisotropic B[1][1] 0.63
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] -0.42
Anisotropic B[2][2] -3.74
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 3.12
RMS Deviations
Key Refinement Restraint Deviation
c_bond_d 0.005
c_improper_angle_d 1.45
c_scbond_it 0.54
c_mcangle_it 0.69
c_mcbond_it 0.39
c_angle_deg 1.2
c_dihedral_angle_d 22.8
c_scangle_it 0.87
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.21
Luzzati Sigma A (Observed) 0.12
Luzzati Resolution Cutoff (Low) 20.0
Luzzati ESD (R-Free Set) 0.27
Luzzati Sigma A (R-Free Set) 0.17
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 5494
Nucleic Acid Atoms 0
Heterogen Atoms 271
Solvent Atoms 511

Software

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