Human inositol 1,4,5-trisphosphate 3-kinase A (IP3K) catalytic domain in complex with beta-D-glucopyranosyl 1,3,4,6-tetrakisphosphate/ADP/Mn after reaction
X-RAY DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details | 
| experimental model | PDB | 1W2C | Chain A | 
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details | 
| 1 | VAPOR DIFFUSION, SITTING DROP | 8.5 | 291 | 0.81 M sodium citrate, 0.1M Tris pH 8.5 and 0.1 M NaCl. Protein:precipitant ratio 1:1. Protein concentration: 17 mg/ml. Protein buffer: 20 mM Tris pH 7.5, 50 mM ammonium sulfate and 2 mM DTT. Soaking overnight with 1.5 M lithium sulfate, 0.1 M Tris pH 8.5, 7 mM beta-D-glucopyranosyl 1,3,4-trisphosphate (substrate), 10 mM ATP and 10 mM MnCl2. | 
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content | 
| 2.63 | 53.23 | 
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) | 
| a = 71.283 | α = 90 | 
| b = 97.102 | β = 90 | 
| c = 190.755 | γ = 90 | 
| Symmetry | |
|---|---|
| Space Group | C 2 2 21 | 
Diffraction
| Diffraction Experiment | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
| 1 | 1 | x-ray | 100 | PIXEL | DECTRIS EIGER2 X CdTe 16M | Toroidal mirror, elliptical beam shape | 2022-07-23 | M | SINGLE WAVELENGTH | |||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline | 
| 1 | SYNCHROTRON | ESRF BEAMLINE ID23-1 | 0.8856 | ESRF | ID23-1 | 
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | Rpim I (All) | CC (Half) | 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 | 1.75 | 190.76 | 100 | 0.024 | 0.999 | 13.6 | 13.2 | 67053 | 34.625 | ||||||||||
| Highest Resolution Shell | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | Rpim I (All) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||||
| 1 | 1.75 | 1.78 | 100 | 0.572 | 0.676 | 1.3 | 13.6 | ||||||||||||
Refinement
| Statistics | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Diffraction ID | Structure Solution Method | Cross Validation method | Resolution (High) | Resolution (Low) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (Observed) | R-Work (Depositor) | R-Work (DCC) | R-Free (Depositor) | R-Free (DCC) | R-Free Selection Details | Mean Isotropic B | |||||
| X-RAY DIFFRACTION | FOURIER SYNTHESIS | THROUGHOUT | 1.75 | 95.38 | 63607 | 3386 | 99.98 | 0.20785 | 0.206 | 0.21 | 0.2435 | 0.25 | RANDOM | 44.186 | |||||
| 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] | |
| 3.12 | -0.99 | -2.13 | ||||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation | 
| r_dihedral_angle_2_deg | 23.936 | 
| r_dihedral_angle_3_deg | 16.913 | 
| r_dihedral_angle_4_deg | 16.792 | 
| r_long_range_B_refined | 7.896 | 
| r_long_range_B_other | 7.816 | 
| r_dihedral_angle_1_deg | 6.287 | 
| r_scangle_other | 5.869 | 
| r_mcangle_other | 4.722 | 
| r_mcangle_it | 4.72 | 
| r_scbond_it | 4.072 | 
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number | 
| Protein Atoms | 4144 | 
| Nucleic Acid Atoms | |
| Solvent Atoms | 339 | 
| Heterogen Atoms | 158 | 
Software
| Software | |
|---|---|
| Software Name | Purpose | 
| REFMAC | refinement | 
| XDS | data reduction | 
| XDS | data scaling | 
| REFMAC | phasing | 
| Coot | model building | 
| PDB_EXTRACT | data extraction | 














