X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method In the Earth's Magnetic Field
pH 4.5
Temperature 313.0
Details NaCl, sodium acetate, pH 4.5, in the Earth's magnetic field, temperature 313K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 56.44 α = 90
b = 73.73 β = 90
c = 30.43 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 296
Diffraction Detector
Detector Diffraction Type Details Collection Date
DIFFRACTOMETER CUSTOM-MADE -- 1999-10-20
IMAGE PLATE WEISSENBERG -- 1999-06-20
Diffraction Radiation
Monochromator Protocol
Si 111 CHANNEL SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON PHOTON FACTORY BEAMLINE BL-18B 1.0000 PHOTON FACTORY BL-18B
SYNCHROTRON PHOTON FACTORY BEAMLINE BL-18B 1.0000 PHOTON FACTORY BL-18B

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
1.33 20 93.6 -- -- -- -- 21469 20095 -- 3.0 --
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)
1.33 1.38 62.4 -- -- -- -- --

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 1.33 16.0 -- 3.0 20095 20095 2000 -- -- -- 0.173 0.201 --
RMS Deviations
Key Refinement Restraint Deviation
p_angle_d 0.022
p_bond_d 0.008
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.18
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1001
Nucleic Acid Atoms 0
Heterogen Atoms 1
Solvent Atoms 88

Software

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