Crystal structure of the Voltage Dependent Calcium Channel beta-2 Subunit in Complex With The CaV1.2 I-II Linker.
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION | 7.5 | 292 | 1.1-1.25 M potassium sodium tartrate, 0.1 M Tris Soaked with KI before freezing , pH 7.5, VAPOR DIFFUSION, temperature 292K |
| 2 | VAPOR DIFFUSION | 7.5 | 292 | 1.1-1.25 M potassium sodium tartrate, 0.1 M Tris Soaked with KI before freezing, pH 7.5, VAPOR DIFFUSION, temperature 292K |
| 3 | VAPOR DIFFUSION | 7.5 | 292 | 1.1-1.25 M potassium sodium tartrate, 0.1 M Tris Soaked with NaBr before freezing, pH 7.5, VAPOR DIFFUSION, temperature 292K |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 53.257 | α = 90 |
| b = 70.512 | β = 90 |
| c = 134.339 | γ = 90 |
| Symmetry | |
|---|---|
| Space Group | P 21 21 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 | CCD | MARMOSAIC 225 mm CCD | 2006-04-01 | M | SINGLE WAVELENGTH | ||||||
| 2 | 2 | x-ray | 100 | IMAGE PLATE | RIGAKU RAXIS IV | 2006-03-25 | M | SINGLE WAVELENGTH | ||||||
| 3 | 3 | x-ray | 100 | CCD | MARMOSAIC 225 mm CCD | 2006-04-01 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | ESRF BEAMLINE BM14 | 1.24 | ESRF | BM14 |
| 2 | ROTATING ANODE | RIGAKU | 1.542 | ||
| 3 | SYNCHROTRON | ESRF BEAMLINE BM14 | 0.918 | ESRF | BM14 |
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (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 | |||||||||
| 1,2,3 | 1.95 | 30 | 91 | 37774 | |||||||||||||||
| Highest Resolution Shell | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||||
| 1,2,3 | 1.95 | 2.02 | 36.7 | 0.338 | 1.2 | ||||||||||||||
Refinement
| Statistics | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Diffraction ID | Structure Solution Method | Resolution (High) | Resolution (Low) | Cut-off Sigma (F) | 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 | SAD | 1.95 | 29.398 | 1.32 | 36351 | 1813 | 96.45 | 0.2006 | 0.199 | 0.2 | 0.2291 | 0.22 | Random | ||||||
| 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] | |
| 1.18 | -0.5495 | -0.6305 | ||||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| f_dihedral_angle_d | 15.061 |
| f_angle_d | 1.03 |
| f_chiral_restr | 0.071 |
| f_bond_d | 0.006 |
| f_plane_restr | 0.005 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 2412 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 158 |
| Heterogen Atoms | 17 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| PHENIX | refinement |
| SHARP | phasing |
| REFMAC | refinement |
| CNS | refinement |
| DNA | data collection |
| DENZO | data reduction |
| SCALEPACK | data scaling |














