4Q4D
Crystal structure of the catalytic domain of human diphosphoinositol pentakisphosphate kinase 2 (PPIP5K2) in complex with AMP-PNP and synthetic 3,5-(PP)2-IP4 (3,5-IP8)
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 3T9F | PDB ENTRY 3T9F |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 7 | 277 | 12% w/v PEG3350, 20 mM magnesium chloride, 0.1 M HEPES, pH 7.0, 1 mM AMP-PNP, 2 mM cadmium chloride, crystals transferred to stabilizing buffer (22% w/v PEG3350, 10 mM magnesium chloride, 0.1 M sodium acetate, pH 5.2) at 277 K overnight (ATP in the crystals was hydrolyzed to ADP) then soaked for three days in stabilizing buffer containing 2 mM 3,5-IP8, VAPOR DIFFUSION, HANGING DROP |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.71 | 54.55 |
Crystal Data
Unit Cell | |
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Length ( ? ) | Angle ( ? ) |
a = 88.79 | ¦Á = 90 |
b = 110.681 | ¦Â = 90 |
c = 41.379 | ¦Ã = 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 | 100 | CCD | MARMOSAIC 300 mm CCD | 2014-03-15 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | APS BEAMLINE 22-ID | 1.0 | APS | 22-ID |
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 | 1.85 | 50 | 99.7 | 0.07 | 25.7 | 6.6 | 35810 | 35810 | -3 |
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) | |||||||||||
1 | 1.85 | 1.88 | 96.3 | 0.366 | 3 | 4.3 |
Refinement
Statistics | |||||||||||||||||||
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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 | FOURIER SYNTHESIS | THROUGHOUT | PDB ENTRY 3T9F | 1.85 | 47.01 | 33431 | 33431 | 2197 | 99.44 | 0.1819 | 0.1819 | 0.17968 | 0.21584 | EQUIVALENT AND EXPANDED RANDOM | 20.001 |
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] | |
0.32 | -0.23 | -0.09 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 37.625 |
r_dihedral_angle_4_deg | 17.238 |
r_dihedral_angle_3_deg | 13.08 |
r_long_range_B_refined | 6.686 |
r_long_range_B_other | 6.286 |
r_dihedral_angle_1_deg | 5.531 |
r_scangle_other | 2.445 |
r_mcangle_it | 1.688 |
r_mcangle_other | 1.688 |
r_angle_refined_deg | 1.58 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 2539 |
Nucleic Acid Atoms | |
Solvent Atoms | 403 |
Heterogen Atoms | 78 |
Software
Software | |
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Software Name | Purpose |
HKL-2000 | data collection |
CCP4 | model building |
REFMAC | refinement |
HKL-2000 | data reduction |
HKL-2000 | data scaling |
CCP4 | phasing |