X-RAY DIFFRACTION

Crystallization Details
Method pH Temprature Details
X-RAY DIFFRACTION 5.5 290 The concentration of both oligonucleotides was adjusted to 1.1 mM for the duplex molecule by dissolving each one in 10 mM MES pH 6.5 and 50 mM KCl. They were annealed by heating to 367K for 10 minutes and allowed to cool to room temperature. Crystals with oligonucleotide 5ov4 were grown at 290K with the D153K variant of T5Fen. The resulting T5FenD153K:5ov4 structure was determined from crystals grown in 0.2 M MgCl2, 0.1 M Bis-Tris buffer pH 5.5, 25% w/v PEG 3350.
Unit Cell:
a: 44.720 Å b: 109.940 Å c: 127.340 Å α: 90.000° β: 90.000° γ: 90.000°
Symmetry:
Space Group: P 21 21 21
Crystal Properties:
Matthew's Coefficient: 2.24 Solvent Content: 45.06
Refinement Statistics
Diffraction ID Structure Solution Method Cross Validation Method Resolution Limit (High) Resolution Limit (Low) Number of Reflections (Observed) Number of Reflections (R-free) Percent Reflections (Observed) R-Work R-Free Mean Isotropic
X-RAY DIFFRACTION MOLECULAR REPLACEMENT THROUGHOUT 2.2200 42.1900 30073 1595 99.3500 0.1851 0.2344 48.3350
Data Collection
Overall
Resolution Limit (High) Resolution Limit (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
2.220 44.720 99.400 ? 0.079 13.400 5.700 31727 31727 ? ? ?
Highest Resolution Shell
# Resolution Limits (Low) Resolution Limits (High) Percent Possible (All) Percent Possible (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All)
1 2.220 2.280 94.800 ? 0.654 0.900 3.100 2177
Diffraction
Diffraction experiment
Crystal ID Scattering Type Data Collection Temprature Detector Detector Type Details Collection Date Monochromator Protocol
1 100 K ?
Radiation Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON DIAMOND BEAMLINE I24 0.977 Diamond I24
Software
Software Name Purpose Version
SCALA data scaling 3.3.16
REFMAC refinement 5.8.0135
PDB_EXTRACT data extraction 3.15
xia2 data reduction .
PHASER phasing .