4X1K
Discovery of cytotoxic Dolastatin 10 analogs with N-terminal modifications
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 3HKB |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 290 | 5% PEG 400, 0.1M LiSO4, 5-7% PEG 20K, 50 mM K-PIPES, pH 6.8 at 19oC |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.62 | 53.08 |
Crystal Data
Unit Cell | |
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Length ( ? ) | Angle ( ? ) |
a = 66.73 | ¦Á = 90 |
b = 128.3 | ¦Â = 90 |
c = 254.38 | ¦Ã = 90 |
Symmetry | |
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Space Group | P 21 21 21 |
Diffraction
Diffraction Experiment | ||||||||||||||
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ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | x-ray | 100 | PIXEL | DECTRIS PILATUS 6M | 2012-03-22 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | APS BEAMLINE 17-ID | 1.0 | APS | 17-ID |
Data Collection
Overall | |||||||||||||||||||
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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 | 3.5 | 50 | 92.7 | 0.153 | 3.9 | 3.5 | 26197 | 105.18 |
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) | |||||||||||
1 | 3.5 | 3.56 | 84.3 | 0.872 | 3.1 | 1141 |
Refinement
Statistics | |||||||||||||||||||
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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 | 3HKB | 3.5 | 45.45 | 26100 | 1307 | 92.12 | 0.2028 | 0.1996 | 0.2627 | RANDOM | 144.85 |
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] | |
-40.1132 | 21.7486 | 18.3646 |
RMS Deviations | |
---|---|
Key | Refinement Restraint Deviation |
t_other_torsion | 24.69 |
t_omega_torsion | 2.61 |
t_angle_deg | 1.24 |
t_bond_d | 0.01 |
t_dihedral_angle_d | |
t_incorr_chiral_ct | |
t_pseud_angle | |
t_trig_c_planes | |
t_gen_planes | |
t_it |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 14448 |
Nucleic Acid Atoms | |
Solvent Atoms | |
Heterogen Atoms | 280 |
Software
Software | |
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Software Name | Purpose |
BUSTER | refinement |
DENZO | data reduction |
SCALEPACK | data scaling |
BUSTER | phasing |