X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 8
Temperature 4.0
Details PEG 1000, Imidazole pH8.0, Calcium acetate, VAPOR DIFFUSION, HANGING DROP, temperature 4.0K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 68 α = 105
b = 68 β = 108.8
c = 84.8 γ = 100
Symmetry
Space Group P 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 210 -- 2001-11-05
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ESRF BEAMLINE ID29 0.915 ESRF ID29

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
2.6 30 90.5 -- 0.059 -- -- 40961 37089 -- -- 28.4

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 2.6 30.0 -- -- 40961 37042 1862 90.5 -- -- 0.212 0.282 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 38.7
Anisotropic B[1][1] 7.93
Anisotropic B[1][2] -6.55
Anisotropic B[1][3] -8.6
Anisotropic B[2][2] 0.49
Anisotropic B[2][3] -8.58
Anisotropic B[3][3] -8.42
RMS Deviations
Key Refinement Restraint Deviation
c_dihedral_angle_d 25.11
c_angle_deg 1.65
c_improper_angle_d 1.26
c_bond_d 0.013
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.32
Luzzati Sigma A (Observed) 0.28
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.44
Luzzati Sigma A (R-Free Set) 0.45
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 7915
Nucleic Acid Atoms 827
Heterogen Atoms 301
Solvent Atoms 205

Software

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