X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7
Details PROTEIN WAS CONCENTRATED TO 20 MG/ML IN WATER. CRYSTALLISATION IN 200MM MAGNESIUM ACETATE IN 100MM TRIETHANOLAMINE BUFFER AT PH 7.0. PRECIPITANT WAS 22%. POLYETHYLENE GLYCOL 8000.

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 47.51 α = 90
b = 68.1 β = 110.93
c = 53.71 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH TORROIDAL MIRROR 1997-12-15
Diffraction Radiation
Monochromator Protocol
SILICON SINGLE WAVELENGTH
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
1.92 20 99.7 0.063 0.063 -- 3.8 -- 90583 -- 0.0 13.5
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)
1.92 1.99 99.1 0.187 0.187 7.3 3.83 --

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 1.92 15.0 -- 0.0 -- 24262 1242 99.7 -- -- 0.142 0.21 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 14.3
RMS Deviations
Key Refinement Restraint Deviation
p_staggered_tor 13.8
p_scbond_it 2.653
p_multtor_nbd 0.239
p_planar_tor 3.5
p_bond_d 0.008
p_plane_restr 0.0191
p_chiral_restr 0.099
p_mcbond_it 1.616
p_transverse_tor 38.8
p_mcangle_it 2.168
p_singtor_nbd 0.175
p_scangle_it 3.598
p_angle_d 0.023
p_planar_d 0.025
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2807
Nucleic Acid Atoms 0
Heterogen Atoms 43
Solvent Atoms 531

Software

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