3K9A
Crystal Structure of HIV gp41 with MPER
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 1AIK | PDB entry 1AIK |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 6.5 | 298 | 45% MPD, 0.2 M sodium acetate, 0.1 M Bis-tris, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 298K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.25 | 45.37 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 50.588 | α = 90 |
b = 50.588 | β = 90 |
c = 155.094 | γ = 120 |
Symmetry | |
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Space Group | P 63 2 2 |
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 315 | monochromator and mirror | 2009-08-28 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | NSLS BEAMLINE X29A | 1.08 | NSLS | X29A |
Data Collection
Overall | |||||||||||||||||||
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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 | 2.1 | 50 | 99.8 | 0.074 | 55.8 | 30 | 7537 | 40.71 |
Highest Resolution Shell | |||||||||||||||||||
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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) | |||||||||||
2.1 | 2.14 | 100 | 0.713 | 6 | 29.9 | 355 |
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 (All) | 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 + Br SAD | THROUGHOUT | PDB entry 1AIK | 2.1 | 42.2 | 1.34 | 7518 | 7497 | 563 | 99.7 | 0.2454 | 0.2451 | 0.24 | 0.2488 | 0.25 | Random | 51.4 |
Temperature Factor Modeling | ||||||
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Anisotropic B[1][1] | Anisotropic B[2][2] | Anisotropic B[3][3] | ||||
-1.3604 | -1.3604 | 2.7208 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
fihedral | 15.778 |
fngle | 0.594 |
fond | 0.003 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 642 |
Nucleic Acid Atoms | |
Solvent Atoms | 19 |
Heterogen Atoms |
Software
Software | |
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Software Name | Purpose |
CBASS | data collection |
PHENIX | model building |
PHENIX | refinement |
HKL-2000 | data reduction |
HKL-2000 | data scaling |
PHENIX | phasing |