X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 6.5
Temperature 294.0
Details PEG 1500 MPD, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 294K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 25.42 α = 90
b = 34.02 β = 90
c = 101.24 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
CCD -- -- 2002-03-28
Diffraction Radiation
Monochromator Protocol
-- MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON APS BEAMLINE 14-BM-C 0.95373, 0.97829, 0.97812, APS 14-BM-C

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 32.25 -- -- -- -- -- 8645 8645 -- -- 68.8

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 32.25 -- 1.0 -- 8375 851 96.7 -- 0.278 0.278 0.2927 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 1.88 -- 99 832 0.235 0.2898 0.051 90.4
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 69.3
Anisotropic B[1][1] 0.12
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 0.71
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -0.82
RMS Deviations
Key Refinement Restraint Deviation
x_dihedral_angle_d 28.7
x_mcangle_it 0.0
x_angle_deg 1.8
x_improper_angle_d 1.84
x_scangle_it 0.0
x_mcbond_it 0.0
x_scbond_it 0.0
x_bond_d 0.013
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.53
Luzzati Sigma A (Observed) 0.66
Luzzati Resolution Cutoff (Low) 3.0
Luzzati ESD (R-Free Set) 0.57
Luzzati Sigma A (R-Free Set) 0.58
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 835
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 92

Software

Software
Software Name Purpose
DENZO data reduction
SCALEPACK data scaling
CNS refinement
X-PLOR refinement version: 3.851
CNS phasing