X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 7.5
Details FHIT PROTEIN (13.4 MG/ML) WAS COCRYSTALLIZED WITH 2.5 MOLAR EQUIVALENTS OF IB2 BY MIXING WITH AN EQUAL VOLUME (2.5 - 4 MICROLITERS) OF 2 M AMMONIUM SULFATE, 4% PEG 400 0.1 M NA HEPES PH 7.5 ON A SILICONIZED COVERSLIP WHICH WAS SEALED OVER A 0.8 ML VOLUME OF THE SAME SOLUTION FOR 1 - 4 WEEKS AT ROOM TEMPERATURE., vapor diffusion - hanging drop

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 50.73 α = 90
b = 50.73 β = 90
c = 268.51 γ = 120
Symmetry
Space Group P 61 2 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 98
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD -- -- 1997-03-10
Diffraction Radiation
Monochromator Protocol
SI(111) --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON CHESS BEAMLINE F1 -- CHESS F1

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
3.1 43.9 68.3 -- 0.097 -- -- -- 2965 -- 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)
3.1 3.21 39.1 -- 0.084 8.5 -- --

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
REFINEMENT 3.1 8.0 -- 3.5 -- 2535 125 61.0 -- 0.241 0.241 0.314 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 3.1 3.23 -- 11 157 0.284 0.516 0.156 33.0
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 13.2
RMS Deviations
Key Refinement Restraint Deviation
x_improper_angle_d 0.854
x_bond_d 0.011
x_angle_deg 1.56
x_dihedral_angle_d 27.2
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 978
Nucleic Acid Atoms 0
Heterogen Atoms 49
Solvent Atoms 3

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
X-PLOR 3.851 Structure Solution
X-PLOR 3.851 Structure Refinement
Software
Software Name Purpose
X-PLOR version: 3.851 refinement
X-PLOR version: 3.851 model building