X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 7.2
Details USING THE HANGING DROP METHOD, PROTEIN (10MG/ML) WAS CRYSTALLISED BY MIXING AN EQUAL VOLUME OF PROTEIN WITH A SOLUTION CONTAINING 55% SATURATED DI-AMMONIUM PHOSPHATE AND 200MM TRIS PH7.2. THE DROP WAS EQUILIBRATED AGAINST A WELL CONTAINING 100% SATURATED DI-AMMONIUM PHOSPHATE AT ROOM TEMPERATURE., vapor diffusion - hanging drop

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 44.63 α = 90
b = 50.68 β = 90
c = 75.19 γ = 90
Symmetry
Space Group I 2 2 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 298
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 1995-10-25
Diffraction Radiation
Monochromator Protocol
GRAPHITE(002) --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE ENRAF-NONIUS FR571 -- -- --

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 15 93.0 -- 0.049 -- 3.4 -- 5828 -- 2.0 16.7
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)
2.0 2.18 87.0 -- 0.156 3.0 -- --

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 2.0 10.0 -- -- -- 5000 500 -- -- -- 0.178 0.247 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 21.6
RMS Deviations
Key Refinement Restraint Deviation
p_bond_d 0.014
p_angle_d 2.5
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 670
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 34

Software

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