1AFK
CRYSTAL STRUCTURE OF RIBONUCLEASE A IN COMPLEX WITH 5'-DIPHOSPHOADENOSINE-3'-PHOSPHATE
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
---|---|---|---|
Type | Source | Accession Code | Details |
experimental model | PDB | 3RN3 | PDB ENTRY 3RN3 |
Crystallization
Crystalization Experiments | ||||
---|---|---|---|---|
ID | Method | pH | Temperature | Details |
1 | 5.5 | 289 | PROTEIN WAS CRYSTALLIZED FROM 20% PEG 4000, 20 MM SODIUM CITRATE, PH 5.5 AND THEN SOAKED WITH 1MM 5' DIPHOSPHOADENOSINE 3'-PHOSPHATE FOR 2.5 HRS AT 16 C, temperature 289K |
Crystal Properties | |
---|---|
Matthews coefficient | Solvent content |
2.2 | 48 |
Crystal Data
Unit Cell | |
---|---|
Length ( Å ) | Angle ( ˚ ) |
a = 101.54 | α = 90 |
b = 33.36 | β = 90.09 |
c = 73.25 | γ = 90 |
Symmetry | |
---|---|
Space Group | C 1 2 1 |
Diffraction
Diffraction Experiment | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | x-ray | 293 | IMAGE PLATE | MARRESEARCH | 1995-07-06 | M |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | EMBL/DESY, HAMBURG BEAMLINE X31 | EMBL/DESY, HAMBURG | X31 |
Data Collection
Overall | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Sym 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 | 1.7 | 30 | 91.4 | 0.057 | 9.2 | 3 | 24687 | 18.7 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R-Sym I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||||
1.7 | 1.77 | 82.4 | 0.339 | 1.95 | 1.8 |
Refinement
Statistics | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | 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 | THROUGHOUT | PDB ENTRY 3RN3 | 1.7 | 8 | 24566 | 1189 | 90.4 | 0.211 | 0.211 | 0.266 | RANDOM | 22.3 |
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 |
x_scangle_it | 4.01 |
x_mcangle_it | 2.62 |
x_scbond_it | 2.54 |
x_mcbond_it | 1.56 |
x_angle_deg | 1.4 |
x_improper_angle_d | 1.22 |
x_bond_d | 0.009 |
x_bond_d_na | |
x_bond_d_prot |
Non-Hydrogen Atoms Used in Refinement | |
---|---|
Non-Hydrogen Atoms | Number |
Protein Atoms | 1902 |
Nucleic Acid Atoms | |
Solvent Atoms | 162 |
Heterogen Atoms | 62 |
Software
Software | |
---|---|
Software Name | Purpose |
DENZO | data reduction |
SCALEPACK | data scaling |
AMoRE | phasing |
X-PLOR | refinement |