X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 8
Details PROTEIN WAS CRYSTALLIZED FROM 40-45% SATURATED AMMONIUM PHOSPHATE, PH 8.0, BY MACROSEEDING USING CRYSTALS OF THE WILD TYPE PROTEIN

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 91.9 α = 90
b = 52.57 β = 90
c = 47.32 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 293
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU RAXIS II COLLIMATOR 1993-10
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
1.9 -- 90.0 0.087 -- -- 2.6 -- 16796 -- 0.0 --
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 50.7 -- -- -- -- --

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
-- 1.9 6.0 -- 0.0 -- 16211 1633 90.0 -- 0.213 0.213 0.273 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 1.9 1.97 -- 98 810 0.3836 0.4641 -- 50.7
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 31.1
RMS Deviations
Key Refinement Restraint Deviation
x_improper_angle_d 1.49
x_bond_d 0.012
x_angle_deg 1.494
x_dihedral_angle_d 21.2
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1530
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 67

Software

Software
Software Name Purpose
X-PLOR model building version: 3.1
X-PLOR refinement version: 3.1
DENZO data reduction
SCALEPACK data scaling
X-PLOR phasing version: 3.1