8AHV
Crystal structure of human cathepsin L in complex with calpain inhibitor XII
Experimental procedure
Experimental method | SINGLE WAVELENGTH |
Source type | SYNCHROTRON |
Source details | PETRA III, DESY BEAMLINE P11 |
Synchrotron site | PETRA III, DESY |
Beamline | P11 |
Temperature [K] | 100 |
Detector technology | PIXEL |
Collection date | 2022-02-20 |
Detector | DECTRIS EIGER2 X 16M |
Wavelength(s) | 1.033 |
Spacegroup name | P 1 |
Unit cell lengths | 57.060, 62.640, 67.340 |
Unit cell angles | 105.42, 93.71, 115.36 |
Refinement procedure
Resolution | 44.170 - 1.700 |
R-factor | 0.1691 |
Rwork | 0.168 |
R-free | 0.20690 |
Structure solution method | MOLECULAR REPLACEMENT |
Starting model (for MR) | 3of9 |
RMSD bond length | 0.010 |
RMSD bond angle | 1.074 |
Data reduction software | XDS |
Data scaling software | XSCALE |
Phasing software | PHENIX (1.13-2998_9999) |
Refinement software | PHENIX (1.18_3861) |
Data quality characteristics
Overall | Outer shell | |
Low resolution limit [Å] | 44.170 | 1.750 |
High resolution limit [Å] | 1.700 | 1.700 |
Rmerge | 1.067 | |
Rmeas | 0.118 | |
Number of reflections | 80694 | 6674 |
<I/σ(I)> | 15.46 | |
Completeness [%] | 92.1 | 91.6 |
Redundancy | 11.3 | |
CC(1/2) | 0.999 | 0.870 |
Crystallization Conditions
crystal ID | method | pH | temperature | details |
1 | VAPOR DIFFUSION, SITTING DROP | 4 | 293 | Mature cathepsin L at a concentration of 7 mg/ml was equilibrated against 27% w/v PEG 8000, 1 mM TCEP and 0.1 M sodium acetate at pH 4.0. Crystals, which grew at 293 K to final size after approximately 3 days, were transferred to a compound soaking solution containing 22% w/v PEG 8000, 1 mM TCEP and 0.1 M sodium acetate at pH 4.0 as well as 5% v/v DMSO and 10% v/v PEG 400. |