X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 6.5
Temperature 293.0
Details 16% PEG, 25 mM MES and 0.10% NaN3, pH 6.5, VAPOR DIFFUSION, HANGING DROP, at 293K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 49.02 α = 90
b = 75.25 β = 90
c = 121.64 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 ADSC QUANTUM 4 -- 2000-05-21
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON CHESS BEAMLINE A1 -- CHESS A1

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 30 96.7 0.089 -- -- 4.7 41252 41252 0.0 0.0 14.5
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 1.9 82.7 0.221 -- -- 1.8 5003

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
-- 1.85 30.0 0.0 0.0 42503 41002 2003 96.5 -- 0.182 0.182 0.225 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 1.85 1.97 -- 252 5553 0.206 0.241 0.015 90.1
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 25.8
Anisotropic B[1][1] 0.25
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 3.08
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -3.33
RMS Deviations
Key Refinement Restraint Deviation
c_improper_angle_d 0.94
c_mcbond_it 2.41
c_scbond_it 4.22
c_angle_deg 1.6
c_dihedral_angle_d 25.3
c_bond_d 0.012
c_mcangle_it 3.11
c_scangle_it 6.13
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.18
Luzzati Sigma A (Observed) 0.09
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.23
Luzzati Sigma A (R-Free Set) 0.08
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3144
Nucleic Acid Atoms 0
Heterogen Atoms 1
Solvent Atoms 341

Software

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