Crystal Structure of Parasite Sarcocystis muris Microneme Protein SML- 2 in complex with 1-Thio-beta-D-Galactose (SPACEGROUP C2221)
X-RAY DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details |
| experimental model | PDB | 2YIL | PDB ENTRY 2YIL |
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, HANGING DROP | 7.9 | 291 | VAPOR DIFFUSION, HANGING DROP. PH 7.9, TEMPERATURE 291K. PROTEIN SOLUTION:50 MM TRIS-HCL, 150 MM NACL, PH 8.3, 12 MG/ML SML-2. RESERVOIR: 0.1 M HEPES, PH 7.5, 0.1 M NACL, 1.7 M AMMONIUM SULFATE, 15% GLYCEROL. DROPLET: 1 MICROLITER PROTEIN SOLUTION: 1 MICROLITER RESERVOIR SOLUTION. PROTEIN:1-THIO-BETA-D-GALACTOSE, MOLAR RATIO 1:100. |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 3.34 | 63.2 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 74.73 | α = 90 |
| b = 81.99 | β = 90 |
| c = 130.96 | γ = 90 |
| Symmetry | |
|---|---|
| Space Group | C 2 2 21 |
Diffraction
| Diffraction Experiment | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
| 1 | 1 | x-ray | 110 | IMAGE PLATE | MARRESEARCH MAR30 | GOEBEL MIRROR | 2000-05-05 | M | SINGLE WAVELENGTH | |||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | ROTATING ANODE | RIGAKU RU H2B | |||
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 | 2.43 | 23.9 | 99.1 | 0.04 | 29.1 | 5 | 15317 | -3 | 30.2 | ||||||||||
| 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 | 2.43 | 2.5 | 92.6 | 0.15 | 8.44 | 3.9 | |||||||||||||
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 2YIL | 2.43 | 23.83 | 14549 | 765 | 100 | 0.17267 | 0.17045 | 0.18 | 0.21379 | 0.22 | RANDOM | 36.229 | ||||
| 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 | 0.01 | |||||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 31.992 |
| r_dihedral_angle_3_deg | 15.163 |
| r_dihedral_angle_4_deg | 13.126 |
| r_dihedral_angle_1_deg | 6.927 |
| r_scangle_it | 5.491 |
| r_scbond_it | 3.751 |
| r_mcangle_it | 2.382 |
| r_angle_refined_deg | 1.791 |
| r_mcbond_it | 1.307 |
| r_angle_other_deg | 0.969 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 1976 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 91 |
| Heterogen Atoms | 55 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| REFMAC | refinement |
| XDS | data reduction |
| XSCALE | data scaling |
| PHASER | phasing |














