X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
Temperature 298.0
Details PEG4000, Ammunium Sulfate , VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 61.99 α = 90
b = 61.99 β = 90
c = 146.87 γ = 90
Symmetry
Space Group P 41 21 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 298
2 298
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 1998-07-09
CCD BRANDEIS - B4 -- 1998-07-09
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X26C -- NSLS X26C
SYNCHROTRON NSLS BEAMLINE X25 -- NSLS X25

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
1.7 30 95.8 0.083 -- -- 5.0 31106 31106 -- 0.0 15.0
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)
1.7 1.73 79.4 0.176 -- -- 2.0 1271

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
-- 1.7 30.0 -- 0.0 -- 31106 2348 95.8 -- 0.147 0.147 0.175 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 1.7 1.81 -- 311 4135 0.185 0.231 0.013 84.2
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 17.6
Anisotropic B[1][1] 0.59
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 0.59
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -1.18
RMS Deviations
Key Refinement Restraint Deviation
c_scbond_it 3.3
c_mcangle_it 2.28
c_angle_deg 1.8
c_mcbond_it 1.55
c_scangle_it 4.57
c_bond_d 0.018
c_improper_angle_d 1.19
c_dihedral_angle_d 23.8
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.14
Luzzati Sigma A (Observed) 0.09
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.18
Luzzati Sigma A (R-Free Set) 0.14
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2044
Nucleic Acid Atoms 0
Heterogen Atoms 12
Solvent Atoms 203

Software

Software
Software Name Purpose
DENZO data reduction
SCALEPACK data scaling
CNS refinement
CNS phasing