4O4D
Crystal Structure of an Inositol hexakisphosphate kinase EhIP6KA in complexed with ATP and Ins(1,4,5)P3
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 4O4C | PDB Entry 4O4C |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 5.2 | 277 | 0.4 M NaH2PO4 in the presence of 10 mM ATP,5 mM IP3, 20 mM MgCl2. The crystals were further soaked under 22% (w/v) PEG 3350, 10 mM MgCl2, 10 mM ATP, 0.1 M sodium acetate, pH 5.2, 10 mM IP3 for 3 days. , VAPOR DIFFUSION, HANGING DROP, temperature 277K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.51 | 51 |
Crystal Data
Unit Cell | |
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Length ( ? ) | Angle ( ? ) |
a = 102.738 | ¦Á = 90 |
b = 102.738 | ¦Â = 90 |
c = 111.737 | ¦Ã = 90 |
Symmetry | |
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Space Group | I 41 2 2 |
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 | 2013-06-03 | 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 | 2.1 | 50 | 99.4 | 0.086 | 29.1 | 6.7 | 17674 | 17674 | 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 | 2.1 | 2.14 | 100 | 0.551 | 3.4 | 6.2 | 875 |
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 | MOLECULAR REPLACEMENT | THROUGHOUT | PDB Entry 4O4C | 2.1 | 44.33 | 16743 | 16743 | 922 | 99.33 | 0.176 | 0.176 | 0.1734 | 0.2265 | RANDOM | 39.271 |
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] | |
-0.7 | -0.7 | 1.4 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 32.495 |
r_dihedral_angle_3_deg | 14.945 |
r_dihedral_angle_4_deg | 12.3 |
r_long_range_B_refined | 7.022 |
r_long_range_B_other | 6.932 |
r_dihedral_angle_1_deg | 6.655 |
r_scangle_other | 3.883 |
r_mcangle_other | 3.153 |
r_mcangle_it | 3.152 |
r_scbond_it | 2.541 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 2000 |
Nucleic Acid Atoms | |
Solvent Atoms | 189 |
Heterogen Atoms | 66 |
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 |