X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 8.4
Details pH 8.4

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 67.2 α = 90
b = 67.2 β = 90
c = 217 γ = 90
Symmetry
Space Group I 41 2 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC -- 1998-04
Diffraction Radiation
Monochromator Protocol
-- MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON CHESS BEAMLINE F1 0.9792, 0.9790, 0.964 CHESS F1

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 20 99.7 0.047 -- -- 6.2 -- 9052 -- 0.0 65.0
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)
2.5 2.63 99.8 0.209 -- 3.5 6.3 --

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
MAD 2.5 50.0 -- 0.0 -- 9000 446 99.7 -- -- 0.24 0.283 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 -- 79 1373 0.314 0.336 0.038 99.7
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 53.2
Anisotropic B[1][1] 2.75
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 2.75
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -5.5
RMS Deviations
Key Refinement Restraint Deviation
x_bond_d 0.007
x_improper_angle_d 0.59
x_mcangle_it 2.0
x_dihedral_angle_d 23.5
x_mcbond_it 1.5
x_scangle_it 2.5
x_angle_deg 1.2
x_scbond_it 2.0
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.35
Luzzati Sigma A (Observed) 0.3
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.41
Luzzati Sigma A (R-Free Set) 0.37
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1576
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 20

Software

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