X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Sitting Drop
pH 6.5
Temperature 291.0
Details PEG-8K, ammonium sulphate, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 291K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 71.48 α = 90
b = 74.17 β = 90
c = 205.14 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 -- 2000-04-09
Diffraction Radiation
Monochromator Protocol
-- MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ESRF BEAMLINE BM30A 0.97243 ESRF BM30A

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
2.5 25 94.1 0.064 -- -- 3.7 36218 135437 0.0 0.0 48.7
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)
2.5 2.64 88.1 0.45 -- 1.6 3.6 4879

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
MAD 2.5 24.96 0.0 0.0 64127 -- 3075 0.048 -- -- 0.261 0.297 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 2.5 2.66 9265 438 -- 0.389 0.415 0.02 79.5
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 53.4
Anisotropic B[1][1] 6.22
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 7.25
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -13.47
RMS Deviations
Key Refinement Restraint Deviation
c_improper_angle_d 1.18
c_bond_d 0.009
c_angle_d 1.5
c_dihedral_angle_d 23.9
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.42
Luzzati Sigma A (Observed) 0.54
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 6669
Nucleic Acid Atoms 0
Heterogen Atoms 92
Solvent Atoms 74

Software

Software
Software Name Purpose
CNS refinement
DENZO data reduction
CCP4 data scaling version: (SCALA)
CNS phasing