X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 6
Details pH 6.0

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 111.5 α = 90
b = 111.5 β = 90
c = 137.39 γ = 120
Symmetry
Space Group P 31 2 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 120
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE AREA DETECTOR MARRESEARCH TOROIDAL MIRROR 1997-06
Diffraction Radiation
Monochromator Protocol
SI(111) --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ELETTRA BEAMLINE 5.2R -- ELETTRA 5.2R

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
2.7 20 87.2 -- 0.14 -- 2.3 -- 24049 -- 0.0 42.2
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)
2.7 2.8 69.7 -- 0.648 1.7 1.6 --

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
MOLECULAR REPLACEMENT 2.7 8.0 -- 2.0 -- 22426 1096 84.7 -- 0.208 0.208 0.291 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 2.7 2.86 -- 148 2913 0.327 0.414 0.034 70.1
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 29.3
Anisotropic B[1][1] 2.23
Anisotropic B[1][2] 0.43
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 2.23
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -4.47
RMS Deviations
Key Refinement Restraint Deviation
x_bond_d 0.008
x_scangle_it 3.33
x_angle_deg 1.3
x_mcbond_it 1.59
x_scbond_it 2.28
x_improper_angle_d 0.63
x_dihedral_angle_d 27.1
x_mcangle_it 2.55
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.32
Luzzati Sigma A (Observed) 0.52
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.47
Luzzati Sigma A (R-Free Set) 0.73
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 4205
Nucleic Acid Atoms 0
Heterogen Atoms 19
Solvent Atoms 157

Software

Software
Software Name Purpose
DENZO data reduction
SCALEPACK data scaling
X-PLOR model building
X-PLOR refinement
X-PLOR phasing