1QAT
1-PHOSPHATIDYLINOSITOL-4,5-BISPHOSPHATE PHOSPHODIESTERASE DELTA COMPLEX WITH SAMARIUM (III) CHLORIDE
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
---|---|---|---|
Type | Source | Accession Code | Details |
experimental model | PDB | 1QAS | APO TRICLINIC PHOSPHOLIPASE C |
Crystallization
Crystalization Experiments | ||||
---|---|---|---|---|
ID | Method | pH | Temperature | Details |
1 | clusters formed by mixing - used as seeds in hanging drops | 6.5 | NEEDLE CLUSTERS WERE FORMED BY MIXING EQUAL VOLUMES OF PROTEIN SOLUTION (22 MG/ML) WITH A WELL SOLUTION CONSISTING OF 0.1 M NA MES (PH 6.0), 0.2 M LICL, 20% GLYCEROL, AND 12-14 % PEG 8000. FRAGMENTS OF THE NEEDLE CLUSTERS WERE USED TO SEED HANGING DROPS. THE WELL SOLUTION USED FOR THE SEEDING EXPERIMENTS WAS ADJUSTED TO 0.1M NA MES (PH 6.5), 0.2 M LICL, 20 % GLYCEROL, AND 6-8 % PEG 8000., clusters formed by mixing - used as seeds in hanging drops |
Crystal Properties | |
---|---|
Matthews coefficient | Solvent content |
2.59 | 52.51 |
Crystal Data
Unit Cell | |
---|---|
Length ( Å ) | Angle ( ˚ ) |
a = 61.6 | α = 66.4 |
b = 75.1 | β = 85.6 |
c = 86.4 | γ = 89.8 |
Symmetry | |
---|---|
Space Group | P 1 |
Diffraction
Diffraction Experiment | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | x-ray | 100 | IMAGE PLATE | RIGAKU RAXIS IIC | MIRRORS | M |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | ROTATING ANODE | RIGAKU RUH2R |
Data Collection
Overall | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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 | 3 | 60 | 84.9 | 0.121 | 0.121 | 7.2 | 2.5 | 24235 | -2 |
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) | ||||||||||
3 | 3.11 | 73.8 | 0.248 | 0.248 | 2.3 | 1.8 |
Refinement
Statistics | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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 | Mean Isotropic B | |||||||
X-RAY DIFFRACTION | DIFFERENCE FOURIER | FREE R | APO TRICLINIC PHOSPHOLIPASE C | 3 | 6 | 22504 | 1217 | 0.194 | 0.194 | 0.261 |
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] | |
RMS Deviations | |
---|---|
Key | Refinement Restraint Deviation |
x_dihedral_angle_d | 24.6 |
x_angle_deg | 1.5 |
x_improper_angle_d | 1.3 |
x_bond_d | 0.009 |
x_bond_d_na | |
x_bond_d_prot | |
x_angle_d | |
x_angle_d_na | |
x_angle_d_prot | |
x_angle_deg_na |
Non-Hydrogen Atoms Used in Refinement | |
---|---|
Non-Hydrogen Atoms | Number |
Protein Atoms | 8028 |
Nucleic Acid Atoms | |
Solvent Atoms | 47 |
Heterogen Atoms | 5 |
Software
Software | |
---|---|
Software Name | Purpose |
X-PLOR | model building |
X-PLOR | refinement |
DENZO | data reduction |
SCALEPACK | data scaling |
X-PLOR | phasing |