Crystal structure of S-adenosylmethionine decarboxylase proenzyme (TM0655) from THERMOTOGA MARITIMA at 1.2 A resolution
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | 8 | 277 | 1.0M LiCl, 10.0% PEG-6000, 0.1M TRIS, pH 8.0, VAPOR DIFFUSION, SITTING DROP, NANODROP, temperature 277K | |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.06 | 40.4 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 105.298 | α = 90 |
| b = 105.298 | β = 90 |
| c = 69.427 | γ = 120 |
| Symmetry | |
|---|---|
| Space Group | H 3 |
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 | 2005-01-05 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | ALS BEAMLINE 8.3.1 | ALS | 8.3.1 | |
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | R Sym 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 | 1.2 | 55.24 | 99 | 0.055 | 0.055 | 7.1 | 3 | 88939 | |||||||||||
| Highest Resolution Shell | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | R-Sym I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||||
| 1 | 1.2 | 1.23 | 93.5 | 0.575 | 0.575 | 1.2 | 1.9 | ||||||||||||
Refinement
| Statistics | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Diffraction ID | Structure Solution Method | Cross Validation method | Resolution (High) | Resolution (Low) | Number Reflections (All) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (All) | R-Work (Depositor) | R-Work (DCC) | R-Free (Depositor) | R-Free (DCC) | R-Free Selection Details | Mean Isotropic B | |||||
| X-RAY DIFFRACTION | FREE R | 1.2 | 55 | 88936 | 4307 | 99 | 0.12 | 0.17 | 0.15 | 0.16 | RANDOM | 22.152 | |||||||
| 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] | |
| Coordinate Error | ||
|---|---|---|
| Structure Solution Method | Refinement High Resolution | Refinement Low Resolution |
| 11 | 1716 | 2083 |
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| s_approx_iso_adps | 0.09 |
| s_zero_chiral_vol | 0.081 |
| s_non_zero_chiral_vol | 0.08 |
| s_similar_adp_cmpnt | 0.062 |
| s_anti_bump_dis_restr | 0.049 |
| s_angle_d | 0.035 |
| s_from_restr_planes | 0.03 |
| s_bond_d | 0.015 |
| s_rigid_bond_adp_cmpnt | 0.005 |
| s_similar_dist | |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 1924 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 153 |
| Heterogen Atoms | 4 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| SHELX | refinement |
| SCALA | data scaling |
| MOSFLM | data reduction |
| CCP4 | data scaling |
| CNS | phasing |
| SHELXL-97 | refinement |














