X-RAY DIFFRACTION Experimental Data & Validation


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Crystallization

Crystalization Experiments
Method Slow Cooling
pH 6.7
Temperature 298.0
Details 30 mg insulin, 3.0 ml 0.02 M HCl, 0.3 ml 0.15 M Zinc Acetate, 1.5 ml 0.2 M Sodium Citrate, 1.2 ml 5% Resorcinol in water, 0.36 gm NaCl, pH 6.7, SLOW COOLING, temperature 298.0K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 61.35 α = 90
b = 61.93 β = 110.61
c = 47.81 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 298
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU RAXIS IIC -- 1992-03-19
Diffraction Radiation
Monochromator Protocol
GRAPHITE SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU RU200 -- -- --

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
1.9 44.75 96.9 0.048 -- -- 3.2 25793 25793 0.0 0.0 33.7
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)
1.9 2.01 93.1 -- -- -- -- --

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
-- 1.9 44.75 0.0 0.0 25784 25784 2538 97.0 0.179 0.179 0.179 0.218 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 1.9 2.02 -- 408 3664 0.298 0.307 0.015 93.2
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model restrained
Mean Isotropic B 41.2
Anisotropic B[1][1] -1.76
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 3.14
Anisotropic B[2][2] -5.33
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 7.09
RMS Deviations
Key Refinement Restraint Deviation
c_scangle_it 4.67
c_scbond_it 3.07
c_mcangle_it 3.25
c_mcbond_it 2.15
c_improper_angle_d 0.84
c_dihedral_angle_d 20.9
c_angle_deg 1.31
c_bond_d 0.01
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.21
Luzzati Sigma A (Observed) 0.24
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.25
Luzzati Sigma A (R-Free Set) 0.25
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2328
Nucleic Acid Atoms 0
Heterogen Atoms 69
Solvent Atoms 159

Software

Computing
Computing Package Purpose
R-AXIS Data Reduction (intensity integration)
R-AXIS Data Reduction (data scaling)
CNS 1.0 Structure Solution
CNS 1.0 Structure Refinement
Software
Software Name Purpose
CNS version: 1.0 refinement
CNS version: 1.0 model building
R-AXIS data reduction
R-AXIS data collection