3USV
Structure of the precursor of a thermostable variant of papain at 3.8 A resolution from a crystal soaked at pH 4
Experimental procedure
Experimental method | SINGLE WAVELENGTH |
Source type | ROTATING ANODE |
Source details | Cu FINE FOCUS |
Temperature [K] | 100 |
Detector technology | IMAGE PLATE |
Collection date | 2011-05-23 |
Detector | MAR scanner 345 mm plate |
Wavelength(s) | 1.54 |
Spacegroup name | P 1 21 1 |
Unit cell lengths | 42.853, 75.970, 109.711 |
Unit cell angles | 90.00, 97.71, 90.00 |
Refinement procedure
Resolution | 29.600 - 3.800 |
R-factor | 0.358 |
Rwork | 0.358 |
R-free | 0.40800 |
Structure solution method | MOLECULAR REPLACEMENT |
Starting model (for MR) | 3tnx |
RMSD bond length | 0.012 |
RMSD bond angle | 2.400 |
Data reduction software | AUTOMAR |
Phasing software | MOLREP |
Refinement software | CNS |
Data quality characteristics
Overall | Outer shell | |
Low resolution limit [Å] | 50.000 | 3.940 |
High resolution limit [Å] | 3.800 | 3.800 |
Rmerge | 0.121 | |
Number of reflections | 6069 | |
<I/σ(I)> | 1.4 | |
Completeness [%] | 86.6 | 88.1 |
Crystallization Conditions
crystal ID | method | pH | temperature | details |
1 | VAPOR DIFFUSION, HANGING DROP | 4 | CS37 of Hampton Research, soaked overnight in NaOAc buffer pH 4.0, VAPOR DIFFUSION, HANGING DROP |