3USV
Structure of the precursor of a thermostable variant of papain at 3.8 A resolution from a crystal soaked at pH 4
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
---|---|---|---|---|
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 |
Crystal Properties | |
---|---|
Matthews coefficient | Solvent content |
2.15 | 42.91 |
Crystal Data
Unit Cell | |
---|---|
Length ( Å ) | Angle ( ˚ ) |
a = 42.853 | α = 90 |
b = 75.97 | β = 97.71 |
c = 109.711 | γ = 90 |
Symmetry | |
---|---|
Space Group | P 1 21 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 | IMAGE PLATE | MAR scanner 345 mm plate | Osmic | 2011-05-23 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | ROTATING ANODE | Cu FINE FOCUS | 1.54 |
Data Collection
Overall | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | 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 | 3.8 | 50 | 86.6 | 0.121 | 1.4 | 7008 | 6069 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||||||
1 | 3.8 | 3.94 | 88.1 |
Refinement
Statistics | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Diffraction ID | Structure Solution Method | Starting model | Resolution (High) | Resolution (Low) | Number Reflections (All) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (Observed) | R-Work | R-Free | R-Free Selection Details | Mean Isotropic B | ||||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | PDB ENTRY 3TNX | 3.8 | 29.6 | 5807 | 5245 | 562 | 0.358 | 0.358 | 0.408 | RANDOM | 44.4991 |
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] | |
-42.167 | -3.633 | -8.797 | 50.964 |
RMS Deviations | |
---|---|
Key | Refinement Restraint Deviation |
c_angle_deg | 2.4 |
c_bond_d | 0.012 |
Non-Hydrogen Atoms Used in Refinement | |
---|---|
Non-Hydrogen Atoms | Number |
Protein Atoms | 3020 |
Nucleic Acid Atoms | |
Solvent Atoms | |
Heterogen Atoms |
Software
Software | |
---|---|
Software Name | Purpose |
MAR345dtb | data collection |
MOLREP | phasing |
CNS | refinement |
AUTOMAR | data reduction |