X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 6.8
Temperature 295.0
Details 100mM HEPES pH 6.8, 40% PEG 400, 120mM KSCN, VAPOR DIFFUSION, HANGING DROP, temperature 295.0K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 198.53 α = 90
b = 198.53 β = 90
c = 198.53 γ = 90
Symmetry
Space Group I 2 3

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 315 Bent conical Si-mirror 2007-12-06
Diffraction Radiation
Monochromator Protocol
Bent Ge(111) monochromator SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON APS BEAMLINE 14-BM-C 1.0 APS 14-BM-C

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
2.95 50 89.7 0.113 -- -- 2.1 -- 23855 -- 0.0 37.83
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)
2.95 3.06 96.0 0.432 -- 2.2 2.0 --

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 2.95 46.79 -- 0.0 -- 23855 -- 89.7 -- 0.202 0.202 0.247 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 2.95 2.97 -- -- 446 0.356 0.4252 -- --
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 52.68
RMS Deviations
Key Refinement Restraint Deviation
c_bond_d 0.006546
c_angle_deg 1.30388
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3816
Nucleic Acid Atoms 0
Heterogen Atoms 99
Solvent Atoms 288

Software

Software
Software Name Purpose
CNS refinement version: 1.21
PDB_EXTRACT data extraction version: 3.005
HKL-2000 data reduction
SCALEPACK data scaling
PHASER phasing