X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Sitting Drop
pH 6.9
Temperature 295.0
Details SITTING DROPS CONTAIN 1.0 MM SINGLE STRAND OLIGONUCLEOTIDE,20 MM SODIUM CACODYLATE BUFFER PH 6.9, 20 MM CALCIUM CLORIDE,AGAINST RESERVOIR OF 40% MPD, VAPOR DIFFUSION, SITTING DROP, temperature 295K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 38.76 α = 90
b = 38.76 β = 90
c = 99.08 γ = 120
Symmetry
Space Group H 3

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 120
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD MARRESEARCH -- 1998-09-05
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON APS BEAMLINE 5ID-B -- APS 5ID-B

Data Collection

Overall
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
1.29 25 99.5 0.089 -- -- 3.9 13911 13911 -- -3.0 --
High Resolution Shell
Resolution (High) Resolution (Low) Percent Possible (All) R Merge I (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All)
1.29 1.34 99.1 0.309 -- -- 3.4 --

Refinement

Statistics
Structure Solution Method Refinement High Resolution Refinement Low Resolution Cut-off Sigma (I) Cut-off Sigma (F) Number of Reflections (All) Number of Reflections (Observed) Number of Reflections (R-Free) Percent Reflections (Observed) R-Factor (All) R-Factor (Observed) R-Work R-Free R-Free Selection Details
-- 1.3 15.0 0.0 0.0 13395 13120 1343 95.9 0.182 -- 0.182 0.22 RANDOM
RMS Deviations
Key Refinement Restraint Deviation
s_bond_d 0.005
s_angle_d 0.006
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 0
Nucleic Acid Atoms 448
Heterogen Atoms 6
Solvent Atoms 125

Software

Software
Software Name Purpose
AMoRE phasing
SHELXL-97 refinement
DENZO data reduction
SCALEPACK data scaling