X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 4.7
Details PROTEIN WAS CRYSTALLIZED FROM 27.5% PEG 8000, 0.1M SODIUM ACETATE, PH 4.7, AND 2MM SODIUM MOLYBDATE

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 82.57 α = 90
b = 82.57 β = 90
c = 81.51 γ = 120
Symmetry
Space Group P 32 2 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 300
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU RAXIS -- 1996-08
Diffraction Radiation
Monochromator Protocol
-- --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU RUH2R -- -- --

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
1.75 30 93.2 -- 0.055 -- 3.7 -- 30575 -- -- 24.9
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)
1.75 1.81 60.8 -- 0.244 1.9 1.4 --

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
SIRAS 1.75 30.0 -- -- -- 30575 -- 93.2 -- 0.161 0.161 0.203 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 28.6
RMS Deviations
Key Refinement Restraint Deviation
x_dihedral_angle_d 23.9
x_bond_d 0.01
x_angle_deg 1.57
x_improper_angle_d 1.39
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1743
Nucleic Acid Atoms 0
Heterogen Atoms 5
Solvent Atoms 76

Software

Software
Software Name Purpose
SOLOMON phasing
X-PLOR model building version: 4.0
X-PLOR refinement version: 4.0
DENZO data reduction
SCALEPACK data scaling
X-PLOR phasing version: 4.0