Structure of human Heat shock protein 90-alpha N-terminal domain (Hsp90-NTD) in complex with cAMP
X-RAY DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details |
| experimental model | PDB | 2XK2 | |
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, SITTING DROP | 6.5 | 291 | Precipitant: 25 % wt/vol PEG 2000, 200mM MgCl2, 100 mM sodium cacodylate, pH 6.5 Sample: Hsp90a-NTD 20 mg/mL, 10 mM cAMP, 500 mM NaCl, 20 mM TRIS, pH 7.5 |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.41 | 48.91 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 53.502 | α = 90 |
| b = 44.346 | β = 115.6 |
| c = 54.023 | γ = 90 |
| Symmetry | |
|---|---|
| Space Group | P 1 21 1 |
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 PILATUS3 6M | 2018-02-19 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | DIAMOND BEAMLINE I03 | 0.97623 | Diamond | I03 |
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | Rrim I (All) | 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 | 2.35 | 48.72 | 99.8 | 0.144 | 0.17 | 0.089 | 0.962 | 6.6 | 3.7 | 9680 | 2 | 14.3 | |||||||
| Highest Resolution Shell | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Rrim I (All) | Rpim I (All) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||
| 1 | 2.35 | 2.48 | 99.7 | 0.34 | 0.398 | 0.205 | 0.874 | 3.9 | 3.8 | ||||||||||
Refinement
| Statistics | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 (Depositor) | R-Work (DCC) | R-Free (Depositor) | R-Free (DCC) | R-Free Selection Details | Mean Isotropic B | ||||
| X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | 2XK2 | 2.35 | 48.72 | 9135 | 515 | 99.57 | 0.22639 | 0.22317 | 0.23 | 0.2858 | 0.3 | RANDOM | 21.603 | ||||
| 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] | |
| 1.65 | -4.47 | 11.06 | -5.77 | |||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 34.048 |
| r_dihedral_angle_4_deg | 28.278 |
| r_dihedral_angle_3_deg | 17.845 |
| r_dihedral_angle_1_deg | 8.393 |
| r_long_range_B_refined | 4.68 |
| r_mcangle_it | 2.337 |
| r_angle_refined_deg | 1.771 |
| r_scbond_it | 1.708 |
| r_mcbond_it | 1.498 |
| r_chiral_restr | 0.171 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 1642 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 121 |
| Heterogen Atoms | 22 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| REFMAC | refinement |
| XDS | data reduction |
| SCALA | data scaling |
| MOLREP | phasing |














