4Z22
structure of plasmepsin II from Plasmodium Falciparum complexed with inhibitor DR718A
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 2BJU |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 4.6 | 294 | 0.1M CITRIC ACID, PH 4.5, 0.4M AMMONIUM ACETATE, 21% PEG 3350, PROTEIN 10 MG/ML, 10 MM INHIBITOR (in 100% DMSO) |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.16 | 42.95 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 52.45 | α = 90 |
b = 174.69 | β = 90 |
c = 138.97 | γ = 90 |
Symmetry | |
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Space Group | C 2 2 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 | CCD | ADSC QUANTUM 210r | 2014-02-19 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | MAX II BEAMLINE I911-3 | 0.97 | MAX II | I911-3 |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Sym I (Observed) | Rrim I (All) | Rpim I (All) | 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 | 2.62 | 87.345 | 99.3 | 0.088 | 0.104 | 0.055 | 9.1 | 3.4 | 19551 | 19551 |
Highest Resolution Shell | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | R-Sym I (Observed) | Rpim I (All) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||
1 | 2.62 | 2.76 | 96.3 | 0.581 | 0.581 | 0.386 | 1.3 | 3 | 2714 |
Refinement
Statistics | |||||||||||||||||||
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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-Factor (Observed) | R-Work (Depositor) | R-Work (DCC) | R-Free (Depositor) | R-Free (DCC) | R-Free Selection Details | Mean Isotropic B | |||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | FREE R-VALUE | 2BJU | 2.62 | 41.664 | 1.34 | 19515 | 983 | 99.16 | 0.2082 | 0.2058 | 0.21 | 0.2534 | 0.25 | Random selection |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
f_dihedral_angle_d | 11.622 |
f_angle_d | 0.814 |
f_chiral_restr | 0.031 |
f_plane_restr | 0.004 |
f_bond_d | 0.003 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 5210 |
Nucleic Acid Atoms | |
Solvent Atoms | 72 |
Heterogen Atoms | 60 |
Software
Software | |
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Software Name | Purpose |
PHENIX | refinement |
MOSFLM | data reduction |
SCALA | data scaling |
PDB_EXTRACT | data extraction |
PHASER | phasing |