X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Precipitation
pH 6.6
Temperature 300.0
Details 4mM MgCl2, 0.1mM CaCl2, NaN3, PEG 6000, pH 6.6, precipitation , temperature 300K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 42 α = 90
b = 225.3 β = 90
c = 77.4 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 287
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE Macromolecular data collection system with a Weissenberg camera The vertically focusing1m long bent mirror of fused silica is 11.5m from the SR source point and 4.6m from the focus point 1991-02-15
Diffraction Radiation
Monochromator Protocol
A bent triangularly and asymmetrically cut Si(111) crystal is used to focus the beam horizontally and produces monochromatic beams SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON PHOTON FACTORY BEAMLINE BL-6A 1.00 PHOTON FACTORY BL-6A

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 10 -- -- -- -- -- -- 53428 -- -- 23.05

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
MIR 1.8 10.0 -- -- -- 53428 -- -- -- -- 0.196 -- --
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 31.09
RMS Deviations
Key Refinement Restraint Deviation
r_angle_refined_deg 3.34
r_bond_refined_d 0.016
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 4973
Nucleic Acid Atoms 0
Heterogen Atoms 116
Solvent Atoms 383

Software

Computing
Computing Package Purpose
WEIS Data Collection
WEIS Data Reduction (intensity integration)
WEIS Data Reduction (data scaling)
BOSS Structure Solution
X-PLOR Structure Refinement
Software
Software Name Purpose
X-PLOR refinement
BOSS model building
WEIS data collection