7UV6
Isoreticular, interpenetrating co-crystal of Replication Initiator Protein REPE54 and scaffold duplex (21mer) containing the cognate REPE54 sequence and an insert duplex (10mer) with guest TAMRA-labelled thymine and G-C rich sequence.
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
---|---|---|---|---|
ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 8 | 298 | 300 mM MgCl2, 15% PEG 400, and 100 mM Tris HCl |
Crystal Properties | |
---|---|
Matthews coefficient | Solvent content |
3.28 | 66.71 |
Crystal Data
Unit Cell | |
---|---|
Length ( Å ) | Angle ( ˚ ) |
a = 74.085 | α = 90 |
b = 128.495 | β = 90 |
c = 137.26 | γ = 90 |
Symmetry | |
---|---|
Space Group | I 2 2 2 |
Diffraction
Diffraction Experiment | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | x-ray | 100 | CMOS | RDI CMOS_8M | 2021-10-01 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | ALS BEAMLINE 4.2.2 | 1.0 | ALS | 4.2.2 |
Data Collection
Overall | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | Rrim I (All) | Rpim I (All) | CC (Half) | 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 | 2.72 | 38.93 | 99.35 | 0.06592 | 0.07107 | 0.02637 | 0.999 | 20.25 | 7.3 | 17957 | 74.98 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Rrim I (All) | Rpim I (All) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||
1 | 2.72 | 2.817 | 99.72 | 1.13 | 1.216 | 0.4476 | 0.739 | 1.77 | 7.4 |
Refinement
Statistics | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Cut-off Sigma (F) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (Observed) | R-Work | R-Free | Mean Isotropic B | ||||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | FREE R-VALUE | 7u6k | 2.72 | 38.93 | 1.34 | 17903 | 1783 | 99.41 | 0.1985 | 0.1955 | 0.2241 | 91.19 |
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 |
f_dihedral_angle_d | 27.7247 |
f_angle_d | 1.4778 |
f_chiral_restr | 0.0839 |
f_plane_restr | 0.0129 |
f_bond_d | 0.0125 |
Non-Hydrogen Atoms Used in Refinement | |
---|---|
Non-Hydrogen Atoms | Number |
Protein Atoms | 1767 |
Nucleic Acid Atoms | 1259 |
Solvent Atoms | 33 |
Heterogen Atoms | 5 |
Software
Software | |
---|---|
Software Name | Purpose |
PHENIX | refinement |
Coot | model building |
XDS | data reduction |
XSCALE | data scaling |
SCALA | data scaling |
PHASER | phasing |