X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7.5
Details HANGING DROP VAPOUR DIFFUSION. PROTEIN AT CONCENTRATION 8 MG/ML WAS MIXED WITH AN EQUAL VOLUME OF WELL SOLUTION CONSISTING OF 55-65% SATURATED AMMONIUM SULFATE IN 100 MM HEPES BUFFER AT PH 7.5

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 52.95 α = 90
b = 52.95 β = 90
c = 182.35 γ = 120
Symmetry
Space Group P 65 2 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH MIRRORS 1997-11-15
Diffraction Radiation
Monochromator Protocol
GE(111) SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SRS BEAMLINE PX7.2 -- SRS PX7.2

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
2.05 40 99.0 0.109 -- -- 8.1 -- 10205 -- -3.0 23.0
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)
2.05 2.12 98.9 0.349 -- 5.2 -- --

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 2.05 40.0 -- 0.0 -- 10205 497 99.0 -- -- 0.192 0.252 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 23.0
RMS Deviations
Key Refinement Restraint Deviation
p_transverse_tor 28.7
p_staggered_tor 13.7
p_planar_tor 5.5
p_xyhbond_nbd 0.203
p_multtor_nbd 0.266
p_bond_d 0.017
p_angle_d 0.037
p_planar_d 0.039
p_mcbond_it 2.813
p_mcangle_it 3.151
p_scbond_it 5.991
p_scangle_it 6.54
p_plane_restr 0.0327
p_chiral_restr 0.134
p_singtor_nbd 0.176
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 935
Nucleic Acid Atoms 0
Heterogen Atoms 43
Solvent Atoms 153

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
AMORE Structure Solution
REFMAC Structure Refinement
Software
Software Name Purpose
REFMAC refinement
AMORE model building