4PAQ
A conserved phenylalanine as relay between the 5 helix and the GDP binding region of heterotrimeric G protein
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 1GIA |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 291 | (NH4)2SO3, Sodium acetate |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.36 | 47.91 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 79.3 | α = 90 |
b = 79.3 | β = 90 |
c = 105.141 | γ = 120 |
Symmetry | |
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Space Group | P 32 2 1 |
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 | MARMOSAIC 300 mm CCD | 2013-07-07 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | APS BEAMLINE 21-ID-G | 0.978 | APS | 21-ID-G |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (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 | 2 | 41.7 | 100 | 0.102 | 17.5 | 5.5 | 26483 |
Highest Resolution Shell | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R-Sym I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||||
2 | 2.07 | 0.446 | 3.91 | 5.5 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Cut-off Sigma (F) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (Observed) | R-Work | R-Free | Mean Isotropic B | ||||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | FREE R-VALUE | 1GIA | 2 | 41.7 | 1.37 | 26437 | 2683 | 99.77 | 0.1735 | 0.1698 | 0.2066 |
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] | |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
f_dihedral_angle_d | 14.023 |
f_angle_d | 1.009 |
f_chiral_restr | 0.068 |
f_bond_d | 0.007 |
f_plane_restr | 0.003 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 2541 |
Nucleic Acid Atoms | |
Solvent Atoms | 169 |
Heterogen Atoms | 33 |
Software
Software | |
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Software Name | Purpose |
PHENIX | refinement |
PHASER | phasing |