X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Sitting Drop
Temperature 275.0
Details INITIAL CONCENTRATION IN DROPLET: 0.24 MM DNA, 8.57 MM MAGNESIUM ACETATE, 0.11 MM STREPTONIGRIN, 10-15% MPD, 45% FINAL MPD CONCENTRATION IN RESERVOIR. SOLUTIONS WERE UNBUFFERED, VAPOR DIFFUSION, SITTING DROP, temperature 275.0K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 32 α = 90
b = 25.37 β = 112.98
c = 33.63 γ = 90
Symmetry
Space Group C 1 2 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 1998-11-19
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X8C -- NSLS X8C

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
0.99 8 95.0 0.047 -- -- 5.75 13464 13464 -- -1.0 5.3
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)
0.985 1.016 90.7 0.123 -- 7.4 -- --

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
MOLECULAR REPLACEMENT 0.985 8.0 0.0 0.0 13464 13464 631 95.0 -- 0.1409 0.1409 0.1592 RANDOM
RMS Deviations
Key Refinement Restraint Deviation
s_rigid_bond_adp_cmpnt 0.006
s_anti_bump_dis_restr 0.019
s_approx_iso_adps 0.072
s_angle_d 0.049
s_similar_adp_cmpnt 0.026
s_bond_d 0.018
Coordinate Error
Parameter Value
Number Disordered Residues 14.0
Occupancy Sum Hydrogen 114.0
Occupancy Sum Non Hydrogen 272.84
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 0
Nucleic Acid Atoms 364
Heterogen Atoms 32
Solvent Atoms 61

Software

Software
Software Name Purpose
X-PLOR model building
SHELXL-97 refinement
DENZO data reduction
SCALEPACK data scaling
X-PLOR phasing