4KPH
Structure of the Fab fragment of N62, a protective monoclonal antibody to the nonreducing end of Francisella tularensis O-antigen
Experimental procedure
Experimental method | SINGLE WAVELENGTH |
Source type | ROTATING ANODE |
Source details | RIGAKU RU300 |
Temperature [K] | 100 |
Detector technology | IMAGE PLATE |
Collection date | 2012-05-18 |
Detector | RIGAKU RAXIS IV |
Wavelength(s) | 1.5418 |
Spacegroup name | P 21 21 21 |
Unit cell lengths | 68.874, 87.076, 153.589 |
Unit cell angles | 90.00, 90.00, 90.00 |
Refinement procedure
Resolution | 14.870 - 2.590 |
R-factor | 0.225 |
Rwork | 0.222 |
R-free | 0.26800 |
Structure solution method | MOLECULAR REPLACEMENT |
Starting model (for MR) | 3OZ9 (light chain) and pdb entry 3D9A (heavy chain) |
RMSD bond length | 0.002 |
RMSD bond angle | 0.666 |
Data reduction software | DENZO |
Data scaling software | SCALEPACK |
Phasing software | PHASER (2.5.0) |
Refinement software | PHENIX (1.8_1069) |
Data quality characteristics
Overall | Inner shell | Outer shell | |
Low resolution limit [Å] | 15.000 | 15.000 | 2.690 |
High resolution limit [Å] | 2.593 | 5.520 | 2.600 |
Rmerge | 0.068 | 0.033 | 0.325 |
Number of reflections | 28828 | ||
<I/σ(I)> | 14.6 | ||
Completeness [%] | 98.8 | 97.6 | 98.1 |
Redundancy | 3.8 | 3.7 | 3.7 |
Crystallization Conditions
crystal ID | method | pH | temperature | details |
1 | VAPOR DIFFUSION, HANGING DROP | 6.5 | 290 | Microseeding by mixing 0.5 ul of Fab (12 mg/ml in 20 mM Tris-HCl pH 7.5, 150 mM NaCl, 0.02% NaN3) with 0.5 ul of reservoir solution [0.1 M bistris (pH 6.5), 0.2 M ammonium acetate, 25% w/v PEG 3350] and streaking after equilibration, VAPOR DIFFUSION, HANGING DROP, temperature 290K |