X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 5.7
Details dialysys against 38% ethanol in 25 mM sodium Citrate at 4 degrees, pH 5.7

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 55.59 α = 90
b = 65.09 β = 98.29
c = 42.25 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 293
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 2000-09-28
Diffraction Radiation
Monochromator Protocol
Osmic mirrors SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU RU200 1.5418 -- --

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 17 92.0 -- 5.2 -- 2.8 -- 26203 -- -- 21.4
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 1.89 85.4 -- 0.44 2.1 2.8 --

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
MR 1.8 9.95 -- -- -- 25449 1231 92.3 -- 0.202 0.202 0.223 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 1.91 -- 200 3866 0.289 0.325 0.023 88.7
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 34.7
Anisotropic B[1][1] -2.52
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] -1.19
Anisotropic B[2][2] -5.32
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 7.83
RMS Deviations
Key Refinement Restraint Deviation
c_scbond_it 2.05
c_scangle_it 3.19
c_mcangle_it 2.46
c_dihedral_angle_d 25.8
c_improper_angle_d 0.84
c_angle_deg 1.5
c_bond_d 0.013
c_mcbond_it 1.54
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.21
Luzzati Sigma A (Observed) 0.22
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.24
Luzzati Sigma A (R-Free Set) 0.25
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2581
Nucleic Acid Atoms 0
Heterogen Atoms 39
Solvent Atoms 120

Software

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