X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7.5
Details PROTEIN CRYSTALLIZED FROM 45% SATURATED AMMONIUM SULFATE, 22 MM ASPARAGINE, 88 MM MGCL2, 10 %(W/V) GLYCEROL 5 MM 2-MERCAPTOETHANOL, 50 MM HEPES, PH7.5 THEN SOAKED BY 50MM AMP AND 50 MM ASPARAGINE

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 53 α = 90
b = 126.13 β = 105.59
c = 52.86 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 293
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU MIRROR 1995-11
Diffraction Radiation
Monochromator Protocol
MSC DOUBLE MIRROR --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU RUH3R -- -- --

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
2.2 -- 72.1 0.112 -- -- 2.8 -- 25168 -- 1.0 10.7
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)
2.2 2.25 53.4 0.238 -- 2.2 1.7 --

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
-- 2.2 10.0 -- 2.0 -- 24815 2455 71.1 -- 0.164 0.164 0.287 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 2.2 2.3 -- 250 2045 0.244 0.345 -- 54.9
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 10.2
RMS Deviations
Key Refinement Restraint Deviation
x_bond_d 0.008
x_angle_deg 1.25
x_dihedral_angle_d 27.4
x_improper_angle_d 2.7
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.25
Luzzati Resolution Cutoff (Low) 5.0
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 5118
Nucleic Acid Atoms 0
Heterogen Atoms 46
Solvent Atoms 203

Software

Software
Software Name Purpose
PROCESS data collection
PROCESS data reduction
X-PLOR model building
X-PLOR refinement
PROCESS data scaling
X-PLOR phasing