3C6M
Crystal structure of human spermine synthase in complex with spermine and 5-methylthioadenosine
X-RAY DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details |
| experimental model | PDB | 3C6K | PDB entry 3C6K |
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, HANGING DROP | 6.5 | 300 | 18% PEG 3350, 0.1 M NaCl, 0.1 M Bis-Tris pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 300K |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.58 | 52.4 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 88.262 | α = 90 |
| b = 88.262 | β = 90 |
| c = 197.668 | γ = 120 |
| Symmetry | |
|---|---|
| Space Group | P 32 |
Diffraction
| Diffraction Experiment | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
| 1 | 1 | x-ray | 100 | IMAGE PLATE | RIGAKU | var | 2006-07-12 | M | SINGLE WAVELENGTH | |||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | ROTATING ANODE | RIGAKU FR-E+ DW | 1.54178 | ||
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 | 2.45 | 50 | 97.2 | 61292 | 61292 | ||||||||||||||
Refinement
| Statistics | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 3C6K | 2.45 | 35.65 | 58198 | 58198 | 3045 | 97.12 | 0.2117 | 0.2117 | 0.2086 | 0.27092 | RANDOM | 29.348 | ||||
| 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] | |
| 1.03 | 0.51 | 1.03 | -1.54 | |||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 33.353 |
| r_dihedral_angle_4_deg | 19.66 |
| r_dihedral_angle_3_deg | 17.164 |
| r_dihedral_angle_1_deg | 6.277 |
| r_scangle_it | 2.457 |
| r_scbond_it | 1.63 |
| r_angle_refined_deg | 1.478 |
| r_mcangle_it | 1.134 |
| r_mcbond_it | 0.662 |
| r_nbtor_refined | 0.311 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 9942 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 300 |
| Heterogen Atoms | 136 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| REFMAC | refinement |
| HKL-2000 | data collection |
| HKL-2000 | data reduction |
| HKL-2000 | data scaling |
| MOLREP | phasing |
