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_dihedral_angle_d 23.9
c_angle_d 1.5
c_bond_d 0.009
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

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
CCP4 (SCALA) Data Reduction (data scaling)
CNS Structure Solution
CNS Structure Refinement
Software
Software Name Purpose
CNS refinement
CNS model building