X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 7.5
Temperature 293.0
Details ammonium sulfate, sodium chloride, Hepes, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 108.51 α = 90
b = 108.51 β = 90
c = 54 γ = 90
Symmetry
Space Group P 4 21 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD SBC-2 mirrors 2002-10-25
Diffraction Radiation
Monochromator Protocol
double crystal monochromator MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON APS BEAMLINE 19-ID 0.97945 APS 19-ID

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
2.4 50 93.2 0.063 -- -- 7.5 -- 22513 -- 0.0 59.3
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)
2.4 2.49 39.3 0.63 -- -- -- --

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 48.34 -- 0.0 11661 11543 1129 99.0 -- 0.257 0.257 0.296 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 -- 183 1695 0.372 0.409 0.03 99.1
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 69.8
Anisotropic B[1][1] 5.51
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 2.68
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -8.18
RMS Deviations
Key Refinement Restraint Deviation
c_bond_d 0.008
c_mcbond_it 1.57
c_improper_angle_d 0.84
c_scangle_it 3.02
c_angle_deg 1.3
c_mcangle_it 2.89
c_dihedral_angle_d 23.5
c_scbond_it 1.86
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.37
Luzzati Sigma A (Observed) 0.37
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.43
Luzzati Sigma A (R-Free Set) 0.42
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1848
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 23

Software

Software
Software Name Purpose
CNS refinement version: 1.1
HKL-2000 data reduction
SCALEPACK data scaling
SOLVE phasing
RESOLVE phasing