6PFK
PHOSPHOFRUCTOKINASE, INHIBITED T-STATE
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | 7.8 | THE CRYSTALS WERE GROWN FROM 1.6 - 1.8M POTASSIUM TARTRATE, PH 7.8, WITH 10MM 2-PHOSPHOGLYCOLATE, 0.5MM EDTA, 0.5MM DTT. THE CRYSTALS WERE GROWN FROM 1.6 - 1.8M POTASSIUM TARTRATE, PH 7.8, WITH 10MM 2-PHOSPHOGLYCOLATE, 0.5MM EDTA, 0.5MM DTT. 2-PHOSPHOGLYCOLATE IS AN ANALOGUE OF THE NATURAL ALLOSTERIC INHIBITOR PHOSPHOENOLPYRUVATE, SO THIS STRUCTURE REPRESENTS THE ALLOSTERICALLY INHIBITED T-STATE. THE ASYMMETRIC UNIT OF THE CRYSTAL IS THE TETRAMER WHICH OCCURS IN SOLUTION - CHAINS A, B, C, D. |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.68 | 54.02 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 132 | α = 90 |
b = 115.2 | β = 90 |
c = 96.2 | γ = 90 |
Symmetry | |
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Space Group | P 21 21 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 | MARRESEARCH | M |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge 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 | 2.6 | 20 | 97 | 0.126 | 3.5 | 44349 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Resolution (High) | Resolution (Low) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Work | R-Free | Mean Isotropic B | ||||||||||
X-RAY DIFFRACTION | 2.6 | 15 | 41947 | 97 | 0.188 | 0.255 | 33 |
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] | |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
p_scangle_it | 6 |
p_scbond_it | 4.1 |
p_mcangle_it | 3.9 |
p_mcbond_it | 2.5 |
p_multtor_nbd | 0.266 |
p_singtor_nbd | 0.189 |
p_xyhbond_nbd | 0.186 |
p_chiral_restr | 0.128 |
p_angle_d | 0.039 |
p_planar_d | 0.039 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 9395 |
Nucleic Acid Atoms | |
Solvent Atoms | 226 |
Heterogen Atoms | 36 |
Software
Software | |
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Software Name | Purpose |
REFMAC | refinement |
MOSFLM | data reduction |