X-RAY DIFFRACTION Experimental Data & Validation


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Crystallization

Crystalization Experiments
Method Slow Cooling
pH 6.5
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% m-Cresol in ethanol, pH 6.5, SLOW COOLING, temperature 298.0K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 61.25 α = 90
b = 61.74 β = 111.32
c = 47.47 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU RAXIS IV OSMIC CONFOCAL MIRRORS 2000-01-18
Diffraction Radiation
Monochromator Protocol
-- 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
1.8 20.95 92.6 0.039 -- -- 6.15 28441 28441 0.0 0.0 30.6
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)
1.89 1.94 92.6 0.287 -- 5.4 2.2 --

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 20.95 0.0 0.0 25127 25127 2490 96.3 0.195 0.195 0.195 0.235 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 -- 388 3678 0.271 0.333 0.017 93.9
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model restrained
Mean Isotropic B 33.7
Anisotropic B[1][1] -0.84
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 1.98
Anisotropic B[2][2] -5.09
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 5.93
RMS Deviations
Key Refinement Restraint Deviation
c_scangle_it 3.82
c_scbond_it 2.59
c_mcangle_it 2.74
c_mcbond_it 1.86
c_improper_angle_d 0.86
c_dihedral_angle_d 20.8
c_bond_d 0.009
c_angle_deg 1.38
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.21
Luzzati Sigma A (Observed) 0.17
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.27
Luzzati Sigma A (R-Free Set) 0.22
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2349
Nucleic Acid Atoms 0
Heterogen Atoms 61
Solvent Atoms 230

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK 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
SCALEPACK data reduction
DENZO data collection