X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Sitting Drop
pH 6.4
Temperature 295.0
Details DNA, thallium acetate, magnesium acetate, MPD, spermine acetate, pH 6.4, VAPOR DIFFUSION, SITTING DROP, temperature 295K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 25.94 α = 90
b = 40.74 β = 90
c = 66.2 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 110
2 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU RAXIS IV++ OSMIC BLUE CONFOCAL 2001-05-04
CCD ADSC QUANTUM 4 graphite monochromator 2000-05-26
Diffraction Radiation
Monochromator Protocol
GRAPHITE SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU RU300 1.5418 -- --
SYNCHROTRON NSLS BEAMLINE X26C 1.1000 NSLS X26C

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
1.14 35 93.0 0.088 -- -- 13.4 21760 21760 0.0 0.0 16.72
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)
1.2 1.28 68.0 0.144 -- -- 1.4 3249

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
-- 1.2 10.0 2.0 2.0 20997 17667 2100 -- 0.173 0.163 0.169 0.222 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model ANISOTROPIC
Mean Isotropic B 19.5
RMS Deviations
Key Refinement Restraint Deviation
s_angle_d 0.03
s_anti_bump_dis_restr 0.004
s_zero_chiral_vol 0.0
s_bond_d 0.01
s_non_zero_chiral_vol 0.03
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 0
Nucleic Acid Atoms 486
Heterogen Atoms 20
Solvent Atoms 134

Software

Software
Software Name Purpose
SHELXL-97 refinement
MOSFLM data reduction
CCP4 data scaling version: (SCALA)