X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7.5
Temperature 295.5
Details 1.4M (NH4)2SO4, 1% PEG 400, AND 0.1M TRIS PH 7.5 AT 22.5 DEGREES C., temperature 295.5K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 69.24 α = 90
b = 69.24 β = 90
c = 69.24 γ = 90
Symmetry
Space Group P 21 3

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 22
Diffraction Detector
Detector Diffraction Type Details Collection Date
AREA DETECTOR XUONG-HAMLIN MULTIWIRE -- 1993-01
Diffraction Radiation
Monochromator Protocol
GRAPHITE(002) --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU -- -- --

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
1.78 23.06 98.0 -- 0.06 -- 9.7 -- 10508 -- 2.0 17.8
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 1.88 90.1 -- 0.3 2.0 8.5 --

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 1.8 6.0 -- 2.0 -- 10028 1031 95.2 -- 0.175 0.175 0.23 RANDOM
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 1.8 1.88 -- 142 978 0.27 0.29 0.024 90.0
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTAINED
Mean Isotropic B 22.8
RMS Deviations
Key Refinement Restraint Deviation
x_improper_angle_d 1.66
x_bond_d 0.017
x_angle_deg 1.86
x_dihedral_angle_d 23.2
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.19
Luzzati Sigma A (Observed) 0.25
Luzzati Resolution Cutoff (Low) 6.0
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 928
Nucleic Acid Atoms 0
Heterogen Atoms 1
Solvent Atoms 119

Software

Computing
Computing Package Purpose
UCSD Data Reduction (intensity integration)
UCSD Data Reduction (data scaling)
X-PLOR 3.0 Structure Solution
X-PLOR 3.0 Structure Refinement
Software
Software Name Purpose
X-PLOR version: 3.0 refinement
X-PLOR version: 3.0 model building
UCSD version: SOFTWARE data reduction
UCSD version: SOFTWARE data collection