2XNS
Crystal Structure Of Human G alpha i1 Bound To A Designed Helical Peptide Derived From The Goloco Motif Of RGS14
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 2OM2 | PDB ENTRY 2OM2 |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 5.5 | HEXAGONAL CRYSTALS WERE GROWN BY HANGING DROP VAPOR DIFFUSION USING 1 MICROLITER PREMIXED GALPHA I1 AND GOLOCO PEPTIDE (1:1.5 MOLAR RATIO) AT 12 MG/ML IN BUFFER (10 MM TRIS PH 7.5, 1 MM MAGNESIUM CHLORIDE, 10 MICROMOLAR GDP, 5 MM DTT) AND 1 MICROLITER CRYSTALLIZATION SOLUTION (800 MM AMMONIUM SULFATE, 200 MM K/NA TARTRATE, 100 MM SODIUM CITRATE PH 5.5). |
Crystal Properties | |
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Matthews coefficient | Solvent content |
9.3 | 86.78 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 265.261 | α = 90 |
b = 265.261 | β = 90 |
c = 265.261 | γ = 90 |
Symmetry | |
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Space Group | I 2 3 |
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 | 100 | CCD | MARRESEARCH | MIRRORS | 2010-04-10 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | APS BEAMLINE 22-ID | APS | 22-ID |
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 | 3.41 | 40 | 100 | 0.12 | 22.1 | 11.1 | 42418 | -3 | 99.9 |
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 | 3.41 | 3.42 | 100 | 1 | 2.2 | 11.1 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | 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 | PDB ENTRY 2OM2 | 3.41 | 39.99 | 40893 | 1489 | 99.83 | 0.22335 | 0.2226 | 0.24434 | RANDOM | 108.9 |
Temperature Factor Modeling | ||||||
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Anisotropic B[1][1] | Anisotropic B[1][2] | Anisotropic B[1][3] | Anisotropic B[2][2] | Anisotropic B[2][3] | Anisotropic B[3][3] | |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 36.191 |
r_dihedral_angle_3_deg | 16.585 |
r_dihedral_angle_4_deg | 14.714 |
r_dihedral_angle_1_deg | 4.729 |
r_angle_refined_deg | 1.091 |
r_scangle_it | 0.89 |
r_mcangle_it | 0.514 |
r_scbond_it | 0.491 |
r_nbtor_refined | 0.301 |
r_mcbond_it | 0.272 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 5728 |
Nucleic Acid Atoms | |
Solvent Atoms | 10 |
Heterogen Atoms | 86 |
Software
Software | |
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Software Name | Purpose |
REFMAC | refinement |
HKL-2000 | data reduction |
HKL-2000 | data scaling |
PHASER | phasing |