X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 6.5
Details 30% PEG 4000 0.1M SODIUM CITRATE, PH 6.5 0.2M AMMONIUM ACETATE

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 51 α = 90
b = 81.6 β = 90
c = 111.6 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 187
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 1996-09-02
Diffraction Radiation
Monochromator Protocol
-- --
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
2.2 14 97.7 0.089 -- -- 3.2 -- 27424 -- 0.0 --
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)
2.2 2.3 91.5 0.232 -- -- -- --

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 2.2 14.0 -- 0.0 88881 27424 -- 97.7 -- -- 0.195 -- --
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 21.1
RMS Deviations
Key Refinement Restraint Deviation
p_bond_d 0.012
p_angle_d 1.6
p_mcbond_it 3.4
p_mcangle_it 5.0
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3148
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 306

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
X-PLOR Structure Solution
PROLSQ, X-PLOR Structure Refinement
Software
Software Name Purpose
X-PLOR refinement
PROLSQ refinement
X-PLOR model building
SCALEPACK data reduction
DENZO data collection