7EST
Interaction of the peptide CF3-LEU-ALA-NH-C6H4-CF3(TFLA) with porcine pancreatic elastase. X-ray studies at 1.8 Angstroms
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
---|---|---|---|
Type | Source | Accession Code | Details |
experimental model | PDB | 2EST | ELASTASE COMPLEXED WITH A TRIFLUOROACETYL DIPEPTIDE INHIBITOR, (PDB ENTRY 2EST) |
Crystallization
Crystalization Experiments | ||||
---|---|---|---|---|
ID | Method | pH | Temperature | Details |
1 | 5.7 | 10% DMF SOLUTION BUFFERED AT PH 5.7 WITH ACETATE |
Crystal Properties | |
---|---|
Matthews coefficient | Solvent content |
2.15 | 42.88 |
Crystal Data
Unit Cell | |
---|---|
Length ( Å ) | Angle ( ˚ ) |
a = 52.53 | α = 90 |
b = 57.47 | β = 90 |
c = 75.26 | γ = 90 |
Symmetry | |
---|---|
Space Group | P 21 21 21 |
Diffraction
Diffraction Experiment | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | x-ray |
Refinement
Statistics | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Diffraction ID | Structure Solution Method | Starting model | Resolution (High) | Resolution (Low) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Work | R-Free | Mean Isotropic B | ||||||||||
X-RAY DIFFRACTION | ELASTASE COMPLEXED WITH A TRIFLUOROACETYL DIPEPTIDE INHIBITOR, (PDB ENTRY 2EST) | 1.8 | 0.19 |
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_angle_deg | 2 |
x_bond_d | 0.02 |
x_bond_d_na | |
x_bond_d_prot | |
x_angle_d | |
x_angle_d_na | |
x_angle_d_prot | |
x_angle_deg_na | |
x_angle_deg_prot | |
x_dihedral_angle_d |
Non-Hydrogen Atoms Used in Refinement | |
---|---|
Non-Hydrogen Atoms | Number |
Protein Atoms | 1822 |
Nucleic Acid Atoms | |
Solvent Atoms | 103 |
Heterogen Atoms | 61 |
Software
Software | |
---|---|
Software Name | Purpose |
X-PLOR | refinement |