Crystal structure of DC8E8 Fab in the complex with a 14-mer tau peptide at pH 6.5
X-RAY DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details |
| experimental model | PDB | 4OZ4 | pdbid 4OZ4 |
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, HANGING DROP | 6.5 | 295 | 20% PEG 8000, 0.1 M Na-cacodylate, 0.2 M Mg-acetate |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.26 | 45.49 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 60.75 | α = 92.35 |
| b = 82.12 | β = 95.36 |
| c = 89.04 | γ = 89.86 |
| Symmetry | |
|---|---|
| Space Group | P 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 | MARMOSAIC 225 mm CCD | 2008-08-27 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | SLS BEAMLINE X06DA | 1.0000 | SLS | X06DA |
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | CC (Half) | 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 | 2.31 | 34.5 | 96.6 | 0.048 | 0.997 | 14.86 | 2.095 | 64648 | -3 | 39.915 | |||||||||
| Highest Resolution Shell | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||||
| 1 | 2.4 | 2.46 | 96.4 | 0.338 | 0.706 | 2.54 | 2.047 | ||||||||||||
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 | pdbid 4OZ4 | 2.31 | 34.5 | 61485 | 3165 | 85.74 | 0.2368 | 0.2348 | 0.27 | 0.2765 | 0.32 | RANDOM | 37.366 | ||||
| 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] | |
| 5.74 | 6.2 | -3.88 | -7.12 | -1.54 | 1.38 | |
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 35.576 |
| r_dihedral_angle_4_deg | 17.613 |
| r_dihedral_angle_3_deg | 14.98 |
| r_dihedral_angle_1_deg | 6.946 |
| r_angle_refined_deg | 1.521 |
| r_angle_other_deg | 1.314 |
| r_chiral_restr | 0.074 |
| r_bond_refined_d | 0.01 |
| r_gen_planes_refined | 0.007 |
| r_bond_other_d | 0.005 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 13382 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 123 |
| Heterogen Atoms | |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| XDS | data reduction |
| XSCALE | data scaling |
| PHASER | phasing |
| REFMAC | refinement |
| PDB_EXTRACT | data extraction |














