4Q6H
CFTR Associated Ligand (CAL) bound to last 6 residues of CFTR (decameric peptide: iCAL36VQDTRL)
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 4E34 | PDB ID 4E34 (CAL PDZ, no peptide included in search model) |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 8 | 291 | 37% (w/v) polyethylene glycol (PEG) 1000, 0.07 M sodium thiosulfate pentahydrate, 0.1 M Tris pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 291K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.59 | 52.52 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 61.394 | α = 90 |
b = 61.394 | β = 90 |
c = 97.786 | 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 270 | 2013-11-08 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | NSLS BEAMLINE X6A | 1.0781 | NSLS | X6A |
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 | 1.9 | 19.123 | 98.9 | 0.085 | 48.39 | 9142 | 9041 | 2 | 9.08 |
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) | |||||||||||
1 | 1.9 | 2.01 | 96.7 | 0.644 | 9.08 | 41.4 | 1430 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Starting model | Resolution (High) | Resolution (Low) | Cut-off Sigma (I) | Cut-off Sigma (F) | Number Reflections (All) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (All) | R-Factor (Observed) | R-Work | R-Free | Mean Isotropic B | ||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | PDB ID 4E34 (CAL PDZ, no peptide included in search model) | 1.903 | 19.123 | 9.08 | 1.36 | 9142 | 9041 | 460 | 99.47 | 0.1996 | 0.1996 | 0.1983 | 0.222 |
Temperature Factor Modeling | ||||||
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Anisotropic B[1][1] | Anisotropic B[1][2] | Anisotropic B[1][3] | Anisotropic B[2][2] | Anisotropic B[2][3] | Anisotropic B[3][3] | |
5.0242 | 5.0242 | -10.0484 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
f_dihedral_angle_d | 15.259 |
f_angle_d | 1.179 |
f_chiral_restr | 0.079 |
f_bond_d | 0.007 |
f_plane_restr | 0.005 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 708 |
Nucleic Acid Atoms | |
Solvent Atoms | 51 |
Heterogen Atoms | 4 |
Software
Software | |
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Software Name | Purpose |
Blu-Ice | data collection |
PHENIX | model building |
PHENIX | refinement |
XDS | data reduction |
XSCALE | data scaling |
PHENIX | phasing |