1SGF
CRYSTAL STRUCTURE OF 7S NGF: A COMPLEX OF NERVE GROWTH FACTOR WITH FOUR BINDING PROTEINS (SERINE PROTEINASES)
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | 4.9 | PROTEIN WAS CRYSTALLIZED FROM 20MG/ML PROTEIN SOLUTION IN 50MM SODIUM PHOSPHATE (PH6.8) MIXED WITH AN EQUAL VOLUME OF WELL SOLUTION (50MM SODIUM ACETATE PH4.5-5.1, 12-21% PEG 4000, 10 MICROMOLAR ZNSO4) (MCDONALD AND BLUNDELL, 1991, JMB, 219, 595-601)., pH 4.9 |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.6 | 53 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 95.68 | α = 90 |
b = 96.59 | β = 90 |
c = 147 | 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 | 277 | IMAGE PLATE | 1990-05-16 | M |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | EMBL/DESY, HAMBURG | EMBL/DESY, HAMBURG |
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 | 3.1 | 20 | 96 | 0.065 | 0.065 | 10.5 | 2.5 | 24209 |
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 | 3.1 | 3.18 | 92.5 | 0.427 | 0.427 | 1.7 | 2.3 |
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 | BETA-NGF AND PORCINE PANCREATIC KALLIKREIN (1BET AND 2PKA) | 3.15 | 8 | 21857 | 612 | 97 | 0.246 | 0.246 | 0.282 | THIN SHELLS | 40.9 |
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] | |
-43.24 | -0.47 | -0.06 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
x_dihedral_angle_d | 27.6 |
x_angle_deg | 1.75 |
x_improper_angle_d | 1.51 |
x_bond_d | 0.008 |
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 | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 8463 |
Nucleic Acid Atoms | |
Solvent Atoms | |
Heterogen Atoms | 86 |
Software
Software | |
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Software Name | Purpose |
MOSFLM | data reduction |
ROTAVATA/AGROVATA | data reduction |
TFFC | model building |
X-PLOR | model building |
X-PLOR | refinement |
CCP4 | data scaling |
ROTAVATA | data scaling |
TFFC | phasing |
X-PLOR | phasing |