2GCT
STRUCTURE OF GAMMA-CHYMOTRYPSIN IN THE RANGE PH 2.0 TO PH 10.5 SUGGESTS THAT GAMMA-CHYMOTRYPSIN IS A COVALENT ACYL-ENZYME ADDUCT AT LOW PH
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
---|---|---|---|---|
ID | Method | pH | Temperature | Details |
1 | 2 | pH 2.0 |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.33 | 47.19 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 69.8 | α = 90 |
b = 69.8 | β = 90 |
c = 98.1 | γ = 90 |
Symmetry | |
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Space Group | P 42 21 2 |
Diffraction
Diffraction Experiment | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | x-ray | 285 | FILM | KODAK | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | ROTATING ANODE |
Refinement
Statistics | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Diffraction ID | Structure Solution Method | Resolution (High) | Resolution (Low) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Work | R-Free | Mean Isotropic B | |||||||||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | 1.8 | 10 | 0.169 |
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] | |
RMS Deviations | |
---|---|
Key | Refinement Restraint Deviation |
t_dihedral_angle_d | 18.1 |
t_angle_deg | 3.1 |
t_gen_planes | 0.021 |
t_trig_c_planes | 0.02 |
t_bond_d | 0.019 |
t_incorr_chiral_ct | |
t_pseud_angle | |
t_it | |
t_nbd |
Non-Hydrogen Atoms Used in Refinement | |
---|---|
Non-Hydrogen Atoms | Number |
Protein Atoms | 1766 |
Nucleic Acid Atoms | |
Solvent Atoms | 131 |
Heterogen Atoms | 10 |
Software
Software | |
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Software Name | Purpose |
TNT | refinement |
OSCTST | data reduction |
AGROVATA/ROTAVATE | data scaling |