High resolution structure of the third cohesin ScaC in complex with the ScaB dockerin with a mutation in the C-terminal helix (IN to SI) from Acetivibrio cellulolyticus displaying a type I interaction.
X-RAY DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details |
| experimental model | PDB | 4UYP | PDB ENTRY 4UYP |
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | 7.5 | 0.2 M SODIUM ACETATE 0.1 M HEPES, PH 7.5 1.5 M K2HPO4 1.5 M NAH2PO4 | ||
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.68 | 54 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 68.17 | α = 90 |
| b = 68.17 | β = 90 |
| c = 57.14 | γ = 90 |
| Symmetry | |
|---|---|
| Space Group | P 43 |
Diffraction
| Diffraction Experiment | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
| 1 | 1 | x-ray | 100 | PIXEL | DECTRIS PILATUS 6M | 2013-01-27 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | DIAMOND BEAMLINE I03 | Diamond | I03 | |
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 | 1.81 | 68.17 | 96.9 | 0.11 | 5.35 | 2.3 | 23100 | ||||||||||||
| 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 | 1.81 | 1.88 | 93 | 0.42 | 2.01 | 2 | |||||||||||||
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 4UYP | 1.81 | 68.17 | 21904 | 1174 | 96.77 | 0.15192 | 0.14971 | 0.16 | 0.19501 | 0.21 | RANDOM | 23.735 | ||||
| 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] | |
| -0.76 | -0.76 | 1.52 | ||||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 37.018 |
| r_dihedral_angle_4_deg | 14.541 |
| r_dihedral_angle_3_deg | 13.423 |
| r_dihedral_angle_1_deg | 6.36 |
| r_scbond_it | 3.305 |
| r_mcangle_it | 2.913 |
| r_angle_other_deg | 2.607 |
| r_angle_refined_deg | 2.144 |
| r_mcbond_it | 2.011 |
| r_mcbond_other | 1.933 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 1662 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 319 |
| Heterogen Atoms | 3 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| REFMAC | refinement |
| MOSFLM | data reduction |
| FAST_DP | data scaling |
| PHASER | phasing |
