X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 6
Details 2.2M AMMONIUM SULFATE 50 MMSODIUM CITRATE PH 6.0

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 55.3 α = 90
b = 74.68 β = 103
c = 90.96 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 95
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MAR scanner 300 mm plate -- --
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X25 -- NSLS X25

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
2.61 34.5 91.3 -- -- -- 2.0 -- 20104 -- -- --

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
OTHER 2.61 34.5 -- 0.0 -- 20104 -- 91.3 -- -- 0.1981 -- --
High Resolution Shell
Refinement method Shell Resolution (High) Shell Resolution (Low) # of Reflections (Observed) # of Reflections (R-Free) # of Reflections (R-Work) R-Factor (R-Work) R-Factor (R-Free) R-Factor (R-Free Error) Percent Reflections (Observed)
X Ray Diffraction 2.61 2.75 -- -- 2104 0.2945 -- -- 67.1
RMS Deviations
Key Refinement Restraint Deviation
x_improper_angle_d 1.65
x_bond_d 0.012
x_angle_deg 1.79
x_dihedral_angle_d 25.88
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2606
Nucleic Acid Atoms 0
Heterogen Atoms 27
Solvent Atoms 63

Software

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