X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 5.1
Details 25% PEG4000, 0.1M SODIUM ACETATE PH 4.6, 0.2M AMMONIUM SULFATE, pH 5.1

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 111.6 α = 90
b = 111.6 β = 90
c = 103.8 γ = 90
Symmetry
Space Group P 42 21 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 77
Diffraction Detector
Detector Diffraction Type Details Collection Date
-- -- -- 1997-01-15
Diffraction Radiation
Monochromator Protocol
-- MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SSRL BEAMLINE BL1-5 1.9074, 1.7418, 1.7398, 1.5418 SSRL BL1-5

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 20 90.0 0.067 -- -- 4.0 -- 54582 -- -- --
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)
1.8 1.83 82.6 0.316 -- 4.0 -- --

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
MAD 1.8 20.0 -- 1.0 -- 52333 2647 86.3 -- 0.18 0.18 0.235 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 12.4
RMS Deviations
Key Refinement Restraint Deviation
x_bond_d 0.009
x_improper_angle_d 0.76
x_angle_deg 2.21
x_dihedral_angle_d 22.8
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 5537
Nucleic Acid Atoms 0
Heterogen Atoms 52
Solvent Atoms 776

Software

Software
Software Name Purpose
MADSYS phasing
SOLVE phasing
X-PLOR refinement version: 3.8