1STG
TWO DISTINCTLY DIFFERENT METAL BINDING MODES ARE SEEN IN X-RAY CRYSTAL STRUCTURES OF STAPHYLOCOCCAL NUCLEASE-COBALT(II)-NUCLEOTIDE COMPLEXES
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
---|---|---|---|---|
ID | Method | pH | Temperature | Details |
1 | COMPOUND CRYSTAL SOAKED FOR ONE WEEK AT 277 K IN STABILIZING BUFFER COMPRISING 40% (WW) MPD IN 30 MM TRIS-CL PH 8.15, 50 UM COCL2, 100 UM POTASSIUM CITRATE AND 50 UM PDTP. |
Crystal Properties | |
---|---|
Matthews coefficient | Solvent content |
2.18 | 43.62 |
Crystal Data
Unit Cell | |
---|---|
Length ( Å ) | Angle ( ˚ ) |
a = 48.21 | α = 90 |
b = 48.21 | β = 90 |
c = 63.26 | γ = 90 |
Symmetry | |
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Space Group | P 41 |
Data Collection
Refinement
Statistics | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Diffraction ID | Structure Solution Method | Resolution (High) | Resolution (Low) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (Observed) | R-Work | R-Free | Mean Isotropic B | |||||||||
X-RAY DIFFRACTION | 1.7 | 6 | 11746 | 74 | 0.198 | 0.198 | 42 |
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 |
x_dihedral_angle_d | 25.13 |
x_angle_deg | 3.12 |
x_improper_angle_d | 1.3 |
x_bond_d | 0.016 |
x_bond_d_na | |
x_bond_d_prot | |
x_angle_d | |
x_angle_d_na | |
x_angle_d_prot | |
x_angle_deg_na |
Non-Hydrogen Atoms Used in Refinement | |
---|---|
Non-Hydrogen Atoms | Number |
Protein Atoms | 1102 |
Nucleic Acid Atoms | |
Solvent Atoms | 51 |
Heterogen Atoms | 26 |
Software
Software | |
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Software Name | Purpose |
X-PLOR | model building |
X-PLOR | refinement |
X-PLOR | phasing |