4QK3
Structural and Catalytic Effects of Proline Substitution and Surface Loop Deletion in the Extended Active Site of Human Carbonic Anhydrase II - [delta]230-240
Experimental procedure
Experimental method | SINGLE WAVELENGTH |
Source type | ROTATING ANODE |
Source details | RIGAKU RUH3R |
Temperature [K] | 100 |
Detector technology | CCD |
Collection date | 2013-11-16 |
Detector | ADSC QUANTUM 270 |
Wavelength(s) | 1.5418 |
Spacegroup name | P 21 21 21 |
Unit cell lengths | 42.050, 69.018, 74.168 |
Unit cell angles | 90.00, 90.00, 90.00 |
Refinement procedure
Resolution | 19.550 - 1.345 |
R-factor | 0.218 |
Rwork | 0.217 |
R-free | 0.24950 |
Structure solution method | MOLECULAR REPLACEMENT |
Starting model (for MR) | 3ks3 |
RMSD bond length | 0.010 |
RMSD bond angle | 1.440 |
Data reduction software | DENZO |
Data scaling software | SCALEPACK |
Phasing software | PHASER (2.5.0) |
Refinement software | PHENIX (1.8.4_1496) |
Data quality characteristics
Overall | Inner shell | Outer shell | |
Low resolution limit [Å] | 20.000 | 20.000 | 1.400 |
High resolution limit [Å] | 1.345 | 2.910 | 1.345 |
Number of reflections | 44710 | ||
<I/σ(I)> | 11.2 | 2 | |
Completeness [%] | 91.9 | 64.3 | 93.8 |
Redundancy | 3.8 | 3.3 |
Crystallization Conditions
crystal ID | method | pH | temperature | details |
1 | VAPOR DIFFUSION, HANGING DROP | 7.8 | 298 | 1.6 M sodium citrate, 100 mM Tris-HCl, pH 7.8, VAPOR DIFFUSION, HANGING DROP, temperature 298K |