X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 6.6
Details 1.0 M AMMONIUM SULFATE 50MM CITRATE/PHOSPHATE BUFFER PH 6.6

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 106.47 α = 90
b = 106.47 β = 90
c = 106.47 γ = 90
Symmetry
Space Group P 2 3

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 90
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH MIRROR 1997-10
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
1.8 35.5 88.9 0.069 -- -- 2.0 -- 33363 -- 0.0 18.38
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)
1.8 1.88 80.7 0.197 -- 4.9 1.7 --

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 1.8 70.0 -- 0.0 -- 33363 1668 88.9 -- 0.173 0.176 0.205 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 20.57
RMS Deviations
Key Refinement Restraint Deviation
p_angle_d 0.031
p_staggered_tor 14.9
p_multtor_nbd 0.195
p_chiral_restr 0.154
p_planar_d 0.037
p_mcangle_it 1.88
p_scangle_it 2.92
p_scbond_it 2.05
p_bond_d 0.017
p_plane_restr 0.024
p_planar_tor 4.0
p_transverse_tor 33.8
p_singtor_nbd 0.173
p_special_tor 0.0
p_mcbond_it 1.52
Coordinate Error
Parameter Value
Luzzati Sigma A (Observed) 0.15
Luzzati Resolution Cutoff (Low) 8.4
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2085
Nucleic Acid Atoms 0
Heterogen Atoms 25
Solvent Atoms 335

Software

Software
Software Name Purpose
DENZO data reduction
SCALEPACK data scaling
CCP4 model building
REFMAC refinement
CCP4 phasing