5CO2
Crystalization of human zinc insulin at pH 5.5
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
---|---|---|---|---|
ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 5.5 | 298 | 2 mcL protein (6 mg/mL in 2 mM HCl) + 2 mcL well solution (0.1 M Na2HPO4 pH 5.5, 10 % m/v PEG 6,000) |
Crystal Properties | |
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Matthews coefficient | Solvent content |
1.84 | 33.08 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 81.283 | α = 90 |
b = 81.283 | β = 90 |
c = 33.64 | γ = 120 |
Symmetry | |
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Space Group | H 3 |
Diffraction
Diffraction Experiment | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | x-ray | 100 | CCD | AGILENT TITAN CCD | 2012-09-11 | M | MAD |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SEALED TUBE | OXFORD DIFFRACTION ENHANCE ULTRA | 1.5418 |
Data Collection
Overall | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | Rpim I (All) | CC (Half) | 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 | 1.5 | 14.56 | 98.5 | 0.042 | 0.034 | 0.997 | 10 | 1.8 | 13078 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Rpim I (All) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||
1 | 1.5 | 1.53 | 94.6 | 0.608 | 0.608 | 0.488 | 0.9 | 1.2 | 681 |
Refinement
Statistics | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Diffraction ID | Structure Solution Method | Cross Validation method | Resolution (High) | Resolution (Low) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (Observed) | R-Work | R-Free | R-Free Selection Details | Mean Isotropic B | |||||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | 1.7 | 14.56 | 8633 | 424 | 99.17 | 0.1697 | 0.1673 | 0.2172 | RANDOM | 16.717 |
Temperature Factor Modeling | ||||||
---|---|---|---|---|---|---|
Anisotropic B[1][1] | Anisotropic B[1][2] | Anisotropic B[1][3] | Anisotropic B[2][2] | Anisotropic B[2][3] | Anisotropic B[3][3] | |
-0.03 | -0.03 | -0.03 | 0.09 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 37.731 |
r_dihedral_angle_4_deg | 19.036 |
r_dihedral_angle_3_deg | 15.21 |
r_dihedral_angle_1_deg | 6.256 |
r_angle_refined_deg | 1.841 |
r_angle_other_deg | 0.888 |
r_chiral_restr | 0.11 |
r_bond_refined_d | 0.018 |
r_gen_planes_refined | 0.01 |
r_bond_other_d | 0.002 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 808 |
Nucleic Acid Atoms | |
Solvent Atoms | 86 |
Heterogen Atoms | 4 |
Software
Software | |
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Software Name | Purpose |
CrysalisPro | data collection |
Aimless | data scaling |
MOLREP | phasing |
REFMAC | refinement |
PDB_EXTRACT | data extraction |
CrysalisPro | data reduction |