X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 8.5
Temperature 277.0
Details PEG 4000, Tris-HCl, lithium sulphate, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 277.0K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 31.27 α = 90
b = 47.88 β = 93.6
c = 40.47 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 200
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 4 Double crystal 1999-10-28
Diffraction Radiation
Monochromator Protocol
double crystal MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ALS BEAMLINE 5.0.2 0.95372, 0.97957, 0.9798, 1.07812 ALS 5.0.2

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 30.9 86.4 0.049 -- -- 2.8 55221 55221 2.0 2.0 7.4
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)
1.0 1.05 73.1 0.101 -- 9.2 2.8 55221

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 1.0 30.88 0.0 0.0 55129 55129 1657 85.5 0.195 0.195 0.195 0.198 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 1.0 1.06 -- 222 7390 0.398 0.375 0.025 71.0
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 16.0
Anisotropic B[1][1] -0.38
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] -0.43
Anisotropic B[2][2] 0.57
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -0.19
RMS Deviations
Key Refinement Restraint Deviation
c_bond_d 0.02
c_mcbond_it 6.39
c_scbond_it 11.63
c_improper_angle_d 2.91
c_mcangle_it 6.21
c_scangle_it 13.49
c_angle_deg 1.9
c_dihedral_angle_d 18.0
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.14
Luzzati Sigma A (Observed) 0.15
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.14
Luzzati Sigma A (R-Free Set) 0.14
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 863
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 176

Software

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