X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 6.8
Temperature 298.0
Details PEG MME 5000, amonium sulphate 0.2M, MES 0.1M, pH 6.8, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 105.63 α = 90
b = 106.93 β = 119.3
c = 79.21 γ = 90
Symmetry
Space Group C 1 2 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 200
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 4 KOHZU double crystal monochromator 2000-05-24
Diffraction Radiation
Monochromator Protocol
SAGITALLY FOCUSED Si(111) MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X4A 0.9793, 0.9788, 0.9712 NSLS X4A

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
2.2 50 99.6 0.076 -- -- 7.07 38772 274148 0.0 0.0 21.1
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)
2.2 2.28 100.0 0.337 33.7 5.4 6.8 3893

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
MAD 2.2 26.0 1.0 1.0 38986 36413 1807 93.4 0.221 0.221 0.211 0.253 RANDOM
RMS Deviations
Key Refinement Restraint Deviation
c_angle_deg 1.3
c_improper_angle_d 0.92
c_dihedral_angle_d 19.2
c_bond_d 0.012
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.26
Luzzati Sigma A (Observed) 0.17
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.32
Luzzati Sigma A (R-Free Set) 0.21
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 4230
Nucleic Acid Atoms 0
Heterogen Atoms 10
Solvent Atoms 192

Software

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