X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7
Temperature 277.0
Details Drop: MPD, potassium chloride, spermine tetrahydrochloride, cacodylate; Reservoir: MPD, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 277K, pH 7.00

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 26.72 α = 90
b = 26.72 β = 90
c = 101.54 γ = 120
Symmetry
Space Group P 32 1 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 4 -- 2000-06-13
Diffraction Radiation
Monochromator Protocol
MIRROR SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X26C -- 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
1.79 50 99.4 -- 0.061 -- 4.0 -- 4113 -- 5.0 --
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)
1.79 1.85 100.0 -- 0.187 2.0 4.0 --

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
ISOMORPHOUS REPLACEMENT 1.79 20.0 -- 0.0 3913 -- 200 99.6 0.164 0.161 -- 0.219 RANDOM
RMS Deviations
Key Refinement Restraint Deviation
s_non_zero_chiral_vol 0.007
s_anti_bump_dis_restr 0.065
s_angle_d 2.6
s_bond_d 0.02
s_from_restr_planes 0.025
s_similar_adp_cmpnt 0.143
Coordinate Error
Parameter Value
Occupancy Sum Hydrogen 137.0
Occupancy Sum Non Hydrogen 303.75
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 0
Nucleic Acid Atoms 245
Heterogen Atoms 1
Solvent Atoms 73

Software

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