X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 6.5
Details 30% 2-PROPANOL, 0.2M NA CITRATE, 0.1M NA CACODYLATE PH 6.5

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 136.32 α = 90
b = 136.32 β = 90
c = 74.8 γ = 120
Symmetry
Space Group H 3

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 95
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH MIRRORS 1994-11
Diffraction Radiation
Monochromator Protocol
BENT CYLINDRICAL GE(111) --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SRS BEAMLINE PX9.6 -- SRS PX9.6

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 20 96.6 0.053 0.053 -- 2.8 -- 33839 -- 0.0 14.9
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)
2.0 2.05 98.1 0.174 0.174 12.0 2.7 --

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 2.0 6.0 -- 0.0 -- 33679 1649 96.84 -- 0.187 0.187 0.23 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 2.0 2.09 -- 227 3903 0.271 0.2908 -- 96.84
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model INDIVIDUAL ISOTROPIC B FA
Mean Isotropic B 12.9
RMS Deviations
Key Refinement Restraint Deviation
x_bond_d 0.008
x_scbond_it 3.439
x_mcbond_it 1.87
x_scangle_it 4.86
x_improper_angle_d 1.109
x_mcangle_it 2.636
x_angle_deg 1.41
x_dihedral_angle_d 26.9
Coordinate Error
Parameter Value
Luzzati Resolution Cutoff (Low) 6.0
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3622
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 477

Software

Software
Software Name Purpose
MOSFLM data reduction
SCALA data scaling
X-PLOR model building version: 3.1
X-PLOR refinement version: 3.1
CCP4 data scaling version: (SCALA)
X-PLOR phasing version: 3.1