1IL5
STRUCTURE OF RICIN A CHAIN BOUND WITH INHIBITOR 2,5-DIAMINO-4,6-DIHYDROXYPYRIMIDINE (DDP)
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
---|---|---|---|
Type | Source | Accession Code | Details |
experimental model | PDB | 1RTC | PDB ENTRY 1RTC |
Crystallization
Crystalization Experiments | ||||
---|---|---|---|---|
ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 8.9 | 277 | PEG 8000, TRIS-HCL, BETA-MERCAPTOETHANOL, EDTA, 2,5-DIAMINO-4,6-DIHYDROXYPYRIMIDINE, pH 8.9, VAPOR DIFFUSION, SITTING DROP, temperature 277K |
Crystal Properties | |
---|---|
Matthews coefficient | Solvent content |
2.16 | 43.17 |
Crystal Data
Unit Cell | |
---|---|
Length ( Å ) | Angle ( ˚ ) |
a = 42.07 | α = 93.9 |
b = 65.95 | β = 112.4 |
c = 50.81 | γ = 84.43 |
Symmetry | |
---|---|
Space Group | P 1 |
Diffraction
Diffraction Experiment | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | x-ray | 173 | IMAGE PLATE | RIGAKU RAXIS IV | 2000-06-12 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | ROTATING ANODE | RIGAKU RU200 |
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 | 2.8 | 20 | 91.6 | 0.088 | 7.43 | 2.5 | 12362 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||||
2.8 | 2.9 | 83.7 | 0.246 | 1.56 |
Refinement
Statistics | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Cut-off Sigma (F) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Work | R-Free | R-Free Selection Details | Mean Isotropic B | ||||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | PDB ENTRY 1RTC | 2.8 | 20 | 2 | 10737 | 553 | 0.225 | 0.283 | RANDOM |
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 | 1.108 |
x_bond_d | 0.004 |
Non-Hydrogen Atoms Used in Refinement | |
---|---|
Non-Hydrogen Atoms | Number |
Protein Atoms | 4191 |
Nucleic Acid Atoms | |
Solvent Atoms | 34 |
Heterogen Atoms | 10 |
Software
Software | |
---|---|
Software Name | Purpose |
X-PLOR | model building |
X-PLOR | refinement |
DENZO | data reduction |
SCALEPACK | data scaling |
X-PLOR | phasing |