X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 6.5
Temperature 293.0
Details Sodium acetate, cacodylate buffer, pH 6.50, temperature 293K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 74.61 α = 90
b = 74.61 β = 90
c = 181.26 γ = 120
Symmetry
Space Group P 31

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 103
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD MARRESEARCH MIRRORS 2000-12-20
Diffraction Radiation
Monochromator Protocol
GRAPHITE SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON APS BEAMLINE 17-ID -- APS 17-ID

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
1.77 36 79.8 0.025 -- -- 1.9 -- 87817 -- 0.0 17.7

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 2.2 19.45 -- 1.0 55984 55590 2799 97.2 -- 0.205 0.205 0.251 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 2.2 2.34 -- 447 8326 0.247 0.286 0.014 92.0
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 31.1
Anisotropic B[1][1] -0.36
Anisotropic B[1][2] 2.45
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -0.36
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 0.72
RMS Deviations
Key Refinement Restraint Deviation
c_scangle_it 3.1
c_scbond_it 2.18
c_mcangle_it 2.06
c_mcbond_it 1.32
c_improper_angle_d 0.87
c_bond_d 0.007
c_angle_deg 1.32
c_dihedral_angle_d 21.5
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.26
Luzzati Sigma A (Observed) 0.22
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.33
Luzzati Sigma A (R-Free Set) 0.28
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 7380
Nucleic Acid Atoms 0
Heterogen Atoms 308
Solvent Atoms 457

Software

Computing
Computing Package Purpose
HKL-2000 Data Reduction (intensity integration)
XENGEN Data Reduction (data scaling)
AMORE Structure Solution
CNS 1.0 Structure Refinement
Software
Software Name Purpose
CNS version: 1.0 refinement
AMoRE model building
XENGEN data reduction
HKL-2000 data collection