Anionic trypsin in complex with bovine pancreatic trypsin inhibitor (BPTI) determined to the 1.49 A resolution limit
X-RAY DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details |
| experimental model | PDB | 3TGI | PDB ENTRY 3TGI |
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | 7.5 | 295 | 0.2M lithium sulfate, 0.1M tris, 16% (w/v) PEG 4000, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 295K | |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.45 | 49.81 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 91.634 | α = 90 |
| b = 91.634 | β = 90 |
| c = 61.352 | γ = 120 |
| Symmetry | |
|---|---|
| Space Group | P 32 2 1 |
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 | Nonius Kappa CCD | OSMIC CONFOCAL MAX-FLUX (GREEN) | 2007-12-19 | M | SINGLE WAVELENGTH | |||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | ROTATING ANODE | ENRAF-NONIUS FR591 | |||
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (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 | 1.49 | 25 | 99.5 | 0.062 | 17.8 | 8.8 | 48520 | -3 | 20.6 | ||||||||||
| Highest Resolution Shell | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R-Sym I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||||
| 1.49 | 1.52 | 98.3 | 0.427 | 3.1 | 3.9 | ||||||||||||||
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 (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 3TGI | 1.49 | 25 | 48502 | 48502 | 3859 | 99.4 | 0.187 | 0.187 | 0.18 | 0.205 | 0.19 | RANDOM | 15.1 | |||
| 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] | |
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| c_dihedral_angle_d | 25.7 |
| c_scangle_it | 2.09 |
| c_mcangle_it | 1.48 |
| c_angle_deg | 1.45 |
| c_scbond_it | 1.45 |
| c_improper_angle_d | 1.22 |
| c_mcbond_it | 0.94 |
| c_bond_d | 0.0053 |
| c_bond_d_na | |
| c_bond_d_prot | |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 2233 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 315 |
| Heterogen Atoms | 89 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| SBC-Collect | data collection |
| CNS | refinement |
| HKL-2000 | data reduction |
| HKL-2000 | data scaling |
| CNS | phasing |
