1S2P
The structure and refinement of apocrustacyanin C2 to 1.3A resolution and the search for differences between this protein and the homologous apoproteins A1 and C1
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 1H91 | PDB entry 1H91 |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION | 7 | 298 | 2.3M ammonium sulphate, 5%MPD, 0.1M Tris HCl, pH 7, VAPOR DIFFUSION, temperature 298K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.2 | 43.59 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 41.148 | α = 90 |
b = 79.846 | β = 90 |
c = 110.263 | γ = 90 |
Symmetry | |
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Space Group | P 21 21 21 |
Diffraction
Diffraction Experiment | ||||||||||||||
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ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | x-ray | 298 | CCD | ADSC QUANTUM 4 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | SRS | 0.9 | SRS |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge 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 | 1.3 | 45.2 | 97.2 | 0.08 | 5.4 | 87664 | 87664 | 1 | 0.4 |
Highest Resolution Shell | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||||
1.3 | 1.37 | 89.3 | 0.769 | 0.8 | 13016 |
Refinement
Statistics | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Number Reflections (All) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (All) | R-Factor (Observed) | R-Work | R-Free | R-Free Selection Details | Mean Isotropic B | ||||
X-RAY DIFFRACTION | not applicable | THROUGHOUT | PDB entry 1H91 | 1.3 | 45.2 | 87664 | 87664 | 4296 | 97.2 | 0.19044 | 0.19044 | 0.18914 | 0.21473 | RANDOM | 13.45 |
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] | |
0.23 | 0.71 | -0.93 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_3_deg | 17.374 |
r_dihedral_angle_1_deg | 5.207 |
r_scangle_it | 3.122 |
r_angle_other_deg | 2.292 |
r_sphericity_free | 2.193 |
r_scbond_it | 2.114 |
r_sphericity_bonded | 1.77 |
r_angle_refined_deg | 1.573 |
r_mcangle_it | 1.571 |
r_rigid_bond_restr | 1.133 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 2918 |
Nucleic Acid Atoms | |
Solvent Atoms | 483 |
Heterogen Atoms | 10 |
Software
Software | |
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Software Name | Purpose |
REFMAC | refinement |
MOSFLM | data reduction |
CCP4 | data scaling |