X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 8.4
Temperature 277.0
Details CRYSTALS GROWN FROM 4 MICROLITER HANGING DROPS OF 10MG/ML PROTEIN IN 50 MM TRIS BUFFER (PH8.4 @4C) 4% (V/V) ETOH EQUILIBRATED AT 4C WITH WELLS CONTAINING 11-13% ETOH, vapor diffusion - hanging drop, temperature 277K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 55.5 α = 90
b = 74.2 β = 90
c = 179.2 γ = 90
Symmetry
Space Group C 2 2 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 275
Diffraction Detector
Detector Diffraction Type Details Collection Date
AREA DETECTOR XENTRONICS -- 1993-12-15
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
2.6 22 76.9 0.078 0.078 -- -- -- 10388 -- 2.0 38.0
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)
2.56 2.68 43.0 -- -- 2.0 -- --

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
MOLECULAR REPLACEMENT 2.6 8.0 -- 2.0 -- 10388 1072 76.9 -- 0.176 0.176 0.3 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 2.6 2.71 -- 55 543 0.234 0.309 0.04 --
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 16.7
RMS Deviations
Key Refinement Restraint Deviation
x_scbond_it 2.24
x_bond_d 0.013
x_angle_deg 2.0
x_dihedral_angle_d 25.3
x_scangle_it 3.29
x_improper_angle_d 1.6
x_mcbond_it 1.43
x_mcangle_it 2.23
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.36
Luzzati Resolution Cutoff (Low) 5.0
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2786
Nucleic Acid Atoms 0
Heterogen Atoms 46
Solvent Atoms 78

Software

Software
Software Name Purpose
X-PLOR model building version: 3.0
X-PLOR refinement version: 3.0
XDS data reduction
X-GEN data scaling
X-PLOR phasing version: 3.0