1PYN
DUAL-SITE POTENT, SELECTIVE PROTEIN TYROSINE PHOSPHATASE 1B INHIBITOR USING A LINKED FRAGMENT STRATEGY AND A MALONATE HEAD ON THE FIRST SITE
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 1TYR | PDB ENTRY 1TYR AND INITIAL INTERNAL REFINEMENT OF OTHER COMPLEXES. RESIDUE CYS215, LISTED IN REMARK 500, CORRESPONDS TO THE ACTIVE SITE CYS WHICH IS KNOWN TO BE IN A STRAINED CONFORMATION IN THIS CLASS OF ENZYMES. |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 7.1 | 277 | PRECIPITATION BUFFER: 100 mM HEPES, 0.2 M Magnesisum Acetate, 14% PEG8000, pH 7.10, VAPOR DIFFUSION, HANGING DROP, temperature 277K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
3.18 | 61.38 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 88.71 | α = 90 |
b = 88.71 | β = 90 |
c = 104.83 | γ = 120 |
Symmetry | |
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Space Group | P 31 2 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 | MARRESEARCH | MIRRORS | 2001-05-09 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | ROTATING ANODE | RIGAKU RU300 |
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 | 2.1 | 20 | 94 | 0.057 | 0.057 | 20.2 | 4.5 | 26734 | 25276 | 1 | 29.4 |
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) | ||||||||||
2.1 | 2.18 | 73 | 0.338 | 0.338 | 2.23 | 2.5 | 2784 |
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 (All) | R-Factor (Observed) | R-Work | R-Free | R-Free Selection Details | Mean Isotropic B | |||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | PDB ENTRY 1TYR AND INITIAL INTERNAL REFINEMENT OF OTHER COMPLEXES. RESIDUE CYS215, LISTED IN REMARK 500, CORRESPONDS TO THE ACTIVE SITE CYS WHICH IS KNOWN TO BE IN A STRAINED CONFORMATION IN THIS CLASS OF ENZYMES. | 2.2 | 19.74 | 2 | 25245 | 22184 | 2219 | 78.3 | 0.212 | 0.211 | 0.198 | 0.224 | RANDOM | 32.1 |
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] | |
2.45 | 2.98 | 2.45 | -4.89 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
c_dihedral_angle_d | 22.4 |
c_scangle_it | 5.06 |
c_scbond_it | 3.71 |
c_mcangle_it | 3.34 |
c_mcbond_it | 2.27 |
c_angle_deg | 1.3 |
c_improper_angle_d | 0.72 |
c_bond_d | 0.007 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 2301 |
Nucleic Acid Atoms | |
Solvent Atoms | 251 |
Heterogen Atoms | 43 |
Software
Software | |
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Software Name | Purpose |
MAR345 | data collection |
HKL-2000 | data reduction |
CNX | refinement |
HKL-2000 | data scaling |
CNX | phasing |