X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7.5
Details PROTEIN WAS CRYSTALLIZED FROM 22-25% PEG 3350, 50 MM POTASSIUM PHOSPHATE, PH 7.0-7.5.

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 59.68 α = 91.07
b = 96.98 β = 103.5
c = 59.72 γ = 75.08
Symmetry
Space Group P 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 293
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU RAXIS IIC YALE MIRRORS 1996-05-10
Diffraction Radiation
Monochromator Protocol
NI FILTER --
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
2.38 93.62 81.4 0.097 -- -- 2.2 -- 40737 -- 1.0 40.9
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)
2.38 2.5 46.9 0.272 -- 2.41 -- --

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 2.5 50.0 -- 0.0 -- 37461 3814 86.2 -- 0.218 0.218 0.282 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 2.5 2.59 -- 283 2529 0.26 0.347 0.021 64.8
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 48.5
RMS Deviations
Key Refinement Restraint Deviation
x_bond_d 0.014
x_dihedral_angle_d 21.0
x_improper_angle_d 1.59
x_angle_deg 1.72
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.3
Luzzati Resolution Cutoff (Low) 5.0
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 9200
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 7

Software

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