X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 6
Temperature 20.0
Details PEG 1000, ammonium acetate, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 20K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 30.28 α = 90
b = 46.87 β = 90.72
c = 123.99 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 128
2 128
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD -- -- 2002-02-11
CCD -- -- 2002-02-01
Diffraction Radiation
Monochromator Protocol
-- MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ALS BEAMLINE 5.0.2 0.9700 ALS 5.0.2
SYNCHROTRON NSLS BEAMLINE X8C 0.9795, 0.9797, 0.9720, 1.70 NSLS X8C

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
1.8 20 89.6 -- 0.029 -- -- 28975 28975 0.0 0.0 21.7
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)
1.8 1.86 76.8 -- -- -- -- --

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 1.8 19.56 -- 0.0 28958 28958 1420 89.4 -- 0.233 0.233 0.249 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 1.8 1.86 2336 118 4056 0.262 0.297 0.019 73.0
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 26.4
Anisotropic B[1][1] 0.96
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] -2.48
Anisotropic B[2][2] 3.3
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -4.26
RMS Deviations
Key Refinement Restraint Deviation
c_scbond_it 2.47
c_mcbond_it 1.29
c_bond_d 0.005
c_improper_angle_d 0.74
c_scangle_it 3.4
c_mcangle_it 1.91
c_angle_deg 1.1
c_dihedral_angle_d 18.5
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.23
Luzzati Sigma A (Observed) -0.01
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.25
Luzzati Sigma A (R-Free Set) 0.12
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2150
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 193

Software

Software
Software Name Purpose
CNS refinement version: 1.1
DENZO data reduction
SCALEPACK data scaling
MLPHARE phasing