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: 0.17 mM dna, 31.40 mM magnesium acetate 0.28 mM streptonigrin, 10-15% MPD, 30% final MPD concentration in reservoir. Solutions were unbuffered, VAPOR DIFFUSION, SITTING DROP, temperature 275.0K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 32.24 α = 90
b = 25.35 β = 117.17
c = 34.19 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
AREA DETECTOR 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 93.3 0.031 -- -- 4.87 13087 13087 -- -1.0 5.82
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 89.5 0.122 -- 6.9 -- 1253

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 13087 13087 654 93.3 -- 0.1405 0.1405 0.1509 random
RMS Deviations
Key Refinement Restraint Deviation
s_bond_d 0.018
s_approx_iso_adps 0.039
s_anti_bump_dis_restr 0.041
s_rigid_bond_adp_cmpnt 0.006
s_similar_adp_cmpnt 0.023
s_angle_d 0.053
Coordinate Error
Parameter Value
Number Disordered Residues 9.0
Occupancy Sum Hydrogen 113.0
Occupancy Sum Non Hydrogen 271.4
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 0
Nucleic Acid Atoms 385
Heterogen Atoms 48
Solvent Atoms 51

Software

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