3AKM
X-ray structure of iFABP from human and rat with bound fluorescent fatty acid analogue
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 3IFB | PDB ENTRY 3IFB |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 7.5 | 277 | 30-34% w/v PEG 4000, 0.2M Magnesium chloride, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.1 | 41.54 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 51.02 | α = 90 |
b = 79.011 | β = 94.48 |
c = 63.24 | γ = 90 |
Symmetry | |
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Space Group | P 1 21 1 |
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 | mirrors | 2008-04-18 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | AUSTRALIAN SYNCHROTRON BEAMLINE MX1 | 0.954 | Australian Synchrotron | MX1 |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (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 | 50.8 | 99.5 | 0.1 | 0.12 | 8.8 | 3.7 | 39532 | 39319 | 2 | 21.8 |
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) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||||
1 | 1.9 | 2 | 99.6 | 0.486 | 0.57 | 2.4 | 3.7 | 5728 |
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 | PDB ENTRY 3IFB | 1.9 | 33.48 | 37329 | 1968 | 99.48 | 0.22866 | 0.22599 | 0.27909 | RANDOM | 21.477 |
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] | |
-1.33 | -1.11 | 2.44 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 34.695 |
r_dihedral_angle_4_deg | 18.91 |
r_dihedral_angle_3_deg | 14.872 |
r_dihedral_angle_1_deg | 6.808 |
r_scangle_it | 3.994 |
r_scbond_it | 2.592 |
r_mcangle_it | 1.75 |
r_angle_refined_deg | 1.722 |
r_mcbond_it | 0.979 |
r_chiral_restr | 0.099 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 4233 |
Nucleic Acid Atoms | |
Solvent Atoms | 106 |
Heterogen Atoms | 124 |
Software
Software | |
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Software Name | Purpose |
Blu-Ice | data collection |
AMoRE | phasing |
REFMAC | refinement |
MOSFLM | data reduction |
SCALA | data scaling |