X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 8.5
Details 1.8 M AMMONIUM SULFATE 0.1 M TRIS/HCL, PH 8.5.

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 121.72 α = 90
b = 121.72 β = 90
c = 121.72 γ = 90
Symmetry
Space Group I 2 3

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 283
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH MIRROR 1995-03
Diffraction Radiation
Monochromator Protocol
SI(111) --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON MPG/DESY, HAMBURG BEAMLINE BW6 -- MPG/DESY, HAMBURG BW6

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
1.5 27.2 94.1 0.04 -- -- 6.0 -- 45113 -- 0.0 12.4
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)
1.5 1.57 84.7 0.133 -- 12.0 4.5 --

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 1.5 90.0 -- 0.0 -- 45133 2283 94.1 -- 0.14 0.147 0.164 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 15.22
RMS Deviations
Key Refinement Restraint Deviation
p_staggered_tor 14.2
p_angle_d 0.034
p_chiral_restr 0.171
p_singtor_nbd 0.165
p_transverse_tor 30.2
p_mcbond_it 1.55
p_xyhbond_nbd 0.143
p_scbond_it 2.84
p_planar_tor 4.5
p_mcangle_it 2.24
p_plane_restr 0.025
p_bond_d 0.02
p_multtor_nbd 0.262
p_scangle_it 4.0
p_planar_d 0.038
Coordinate Error
Parameter Value
Luzzati Sigma A (Observed) 0.02
Luzzati Resolution Cutoff (Low) 8.8
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2146
Nucleic Acid Atoms 0
Heterogen Atoms 1
Solvent Atoms 246

Software

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