Structure and Function of the Human Sperm-Specific Isoform of Protein Kinase A (PKA) Catalytic Subunit Calpha 2
X-RAY DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details | 
| experimental model | PDB | 1SMH | PDB ENTRY 1SMH | 
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details | 
| 1 | 20 % PEG 3350, 0.2 M POTASSIUM ACETATE, 5 % POLYPROPYLENE GLYCOL P400 | |||
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content | 
| 2.53 | 51.51 | 
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) | 
| a = 75.776 | α = 90 | 
| b = 89.495 | β = 90 | 
| c = 114.815 | 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 | ADSC CCD | M | SINGLE WAVELENGTH | |||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline | 
| 1 | SYNCHROTRON | ESRF BEAMLINE ID14-4 | ESRF | ID14-4 | |
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge 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 | 89.44 | 99.8 | 0.07 | 14.9 | 5.83 | 46218 | ||||||||||||
| 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 | 2.1 | 6.64 | 100 | 0.5 | 3.3 | 5.97 | |||||||||||||
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 | PDB ENTRY 1SMH | 2.1 | 63.24 | 43775 | 2337 | 99.62 | 0.21864 | 0.21517 | 0.22 | 0.28328 | 0.28 | RANDOM | 37.558 | ||||
| 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] | |
| 0.01 | ||||||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation | 
| r_dihedral_angle_2_deg | 39.18 | 
| r_dihedral_angle_4_deg | 19.714 | 
| r_dihedral_angle_3_deg | 18.358 | 
| r_dihedral_angle_1_deg | 6.671 | 
| r_scangle_it | 4.801 | 
| r_scbond_it | 3.091 | 
| r_mcangle_it | 1.99 | 
| r_angle_refined_deg | 1.871 | 
| r_mcbond_it | 1.142 | 
| r_chiral_restr | 0.131 | 
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number | 
| Protein Atoms | 5332 | 
| Nucleic Acid Atoms | |
| Solvent Atoms | 255 | 
| Heterogen Atoms | 4 | 
Software
| Software | |
|---|---|
| Software Name | Purpose | 
| REFMAC | refinement | 
| MOSFLM | data reduction | 
| SCALEPACK | data scaling | 
| MOLREP | phasing | 














