3N1C
Crystal structure of the phosphofructokinase-2 from Escherichia coli in complex with fructose-6-phosphate
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 3CQD | PDB ENTRY 3CQD |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | 4.75 | 291 | 23% PEG 4000, 0.1 M Sodium acetate pH 4.75, 0.2 M Ammonium acetate, VAPOR DIFFUSION, HANGING DROP, temperature 291K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.28 | 46.02 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 68.793 | α = 90 |
b = 153.605 | β = 90 |
c = 223.79 | 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 | MARMOSAIC 225 mm CCD | 2008-03-02 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | LNLS BEAMLINE W01B-MX2 | LNLS | W01B-MX2 |
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 | 2 | 111.895 | 99.2 | 0.096 | 0.096 | 12.6 | 4.8 | 79638 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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) | ||||||||||
2 | 2.11 | 97.1 | 0.508 | 0.508 | 1.4 | 4.4 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution 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 | R-Free | Mean Isotropic B | |||||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | PDB ENTRY 3CQD | 2 | 36.45 | 0.02 | 75853 | 3801 | 94.5 | 0.182 | 0.18 | 0.221 |
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] | |
-0.1276 | -3.4798 | 3.6787 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
f_dihedral_angle_d | 19.256 |
f_angle_d | 1.293 |
f_chiral_restr | 0.146 |
f_bond_d | 0.01 |
f_plane_restr | 0.008 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 9028 |
Nucleic Acid Atoms | |
Solvent Atoms | 998 |
Heterogen Atoms | 64 |
Software
Software | |
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Software Name | Purpose |
MOSFLM | data reduction |
SCALA | data scaling |
PHASER | phasing |
PHENIX | refinement |
PDB_EXTRACT | data extraction |