X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7.5
Details 2.2M (NH4)2SO4 IN 100 MM HEPES, PH 7.5

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 75.6 α = 90
b = 81.7 β = 90
c = 93.8 γ = 90
Symmetry
Space Group I 2 2 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 290
Diffraction Detector
Detector Diffraction Type Details Collection Date
AREA DETECTOR SIEMENS -- 1994-12-07
Diffraction Radiation
Monochromator Protocol
-- --
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 20 74.3 -- 0.061 -- 3.0 -- 14125 -- 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)
2.0 2.1 30.0 -- 0.228 2.5 1.8 --

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
DIFFERENCE FOURIER 2.2 20.0 -- 2.0 -- 12405 -- 82.0 -- -- 0.18 -- --
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model TNT BCORREL.DAT
RMS Deviations
Key Refinement Restraint Deviation
t_nbd 0.07
t_it 3.93
t_gen_planes 0.05
t_trig_c_planes 0.03
t_incorr_chiral_ct 0.0
t_dihedral_angle_d 20.7
t_angle_deg 1.77
t_bond_d 0.02
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1980
Nucleic Acid Atoms 0
Heterogen Atoms 44
Solvent Atoms 81

Software

Computing
Computing Package Purpose
XENGEN Data Reduction (intensity integration)
XENGEN Data Reduction (data scaling)
PHASES Structure Solution
TNT Structure Refinement
Software
Software Name Purpose
TNT refinement
PHASES model building