X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 9
Details 20% PEG-8000 1.0M NACL 50MM CHES, PH 9 1MM MGATP, pH 9.0

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 143.8 α = 90
b = 64.1 β = 90
c = 46.1 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU RAXIS -- 1995-10
Diffraction Radiation
Monochromator Protocol
GRAPHITE(002) --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU RUH2R -- -- --

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
1.9 40 99.0 1.0 0.056 -- 3.2 -- 34106 -- 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)
1.9 1.97 69.7 1.0 0.133 12.0 1.2 --

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 1.7 6.0 -- 2.0 -- 45230 4454 94.7 -- 0.202 0.202 0.244 RANDOM
High Resolution Shell
Refinement method Shell Resolution (High) Shell Resolution (Low) # of Reflections (Observed) # of Reflections (R-Free) # of Reflections (R-Work) R-Factor (R-Work) R-Factor (R-Free) R-Factor (R-Free Error) Percent Reflections (Observed)
X Ray Diffraction 1.7 1.76 -- 500 5000 0.35 0.38 0.6 0.75
RMS Deviations
Key Refinement Restraint Deviation
x_angle_deg 1.3
x_bond_d 0.006
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.3
Luzzati Resolution Cutoff (Low) 40.0
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2903
Nucleic Acid Atoms 27
Heterogen Atoms 9
Solvent Atoms 442

Software

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