3QC7
The structure of bacteriophage phi29 head fibers has a supercoiled triple repeating helix-turn-helix motif
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 6.8 | 298 | The gp8.5 fragment crystals were grown in 100mM sodium phosphate at pH ~6.8 and 8% w/v PEG 3000. It took about one week for crystals to appear, VAPOR DIFFUSION, HANGING DROP, temperature 298K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.4 | 48.67 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 47.248 | α = 90 |
b = 47.248 | β = 90 |
c = 424.752 | γ = 120 |
Symmetry | |
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Space Group | H 3 2 |
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 300 mm CCD | 2010-01-01 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | APS BEAMLINE 23-ID-D | 0.968 | APS | 23-ID-D |
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 | 1.52 | 70 | 98.6 | 0.07 | 0.07 | 33.4 | 28649 | 28649 | -3 | -3 |
Highest Resolution Shell | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||||
1.52 | 1.57 | 97.7 | 0.407 | 4.6 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Resolution (High) | Resolution (Low) | 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 | SAD | THROUGHOUT | 1.52 | 29.47 | 27206 | 27206 | 1442 | 98.32 | 0.19542 | 0.19542 | 0.19424 | 0.21833 | RANDOM | 22.08 |
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] | |
-0.06 | -0.03 | -0.06 | 0.08 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 42.219 |
r_dihedral_angle_4_deg | 16.537 |
r_dihedral_angle_3_deg | 12.96 |
r_dihedral_angle_1_deg | 5.518 |
r_scangle_it | 4.394 |
r_scbond_it | 2.627 |
r_mcangle_it | 1.642 |
r_angle_refined_deg | 1.368 |
r_mcbond_it | 0.895 |
r_chiral_restr | 0.083 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 1194 |
Nucleic Acid Atoms | |
Solvent Atoms | 179 |
Heterogen Atoms |
Software
Software | |
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Software Name | Purpose |
Blu-Ice | data collection |
SHARP | phasing |
REFMAC | refinement |
HKL-2000 | data reduction |
SCALEPACK | data scaling |