X-RAY DIFFRACTION Experimental Data & Validation


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Crystallization

Crystalization Experiments
Method Vapor Diffusion Sitting Drop
pH 7.4
Temperature 278.0
Details HEPES, pH 7.4, VAPOR DIFFUSION, SITTING DROP, temperature 278K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 53.39 α = 90
b = 70.67 β = 90
c = 72.26 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 120
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU RAXIS II -- 1997-02-05
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
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
2.1 30 98.1 0.048 -- -- 3.2 51723 16264 1.0 1.0 13.3
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)
2.1 2.16 86.6 0.223 -- -- 2.1 --

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
-- 2.1 30.0 1.0 1.0 16229 16228 1647 -- 0.228 0.192 0.192 0.267 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 34.1
RMS Deviations
Key Refinement Restraint Deviation
x_improper_angle_d 1.67
x_bond_d 0.008
x_angle_deg 1.27
x_dihedral_angle_d 25.36
Coordinate Error
Parameter Value
Luzzati Sigma A (Observed) 0.33
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2208
Nucleic Acid Atoms 0
Heterogen Atoms 35
Solvent Atoms 85

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
X-PLOR Structure Solution
X-PLOR 3.851 Structure Refinement
Software
Software Name Purpose
X-PLOR version: 3.851 refinement
X-PLOR model building