X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 5.2
Details 50 % AMMONIUM SULFATE, 100 MM TRIS MALEATE PH 5.2, 2 MM TCEP (TRIS CARBOXYETHYL PHOSPHINE)

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 56.41 α = 90
b = 56.41 β = 90
c = 135.17 γ = 120
Symmetry
Space Group P 31 2 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE -- MIRRORS 1998-12-15
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE -- -- -- --

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 40 97.1 -- 0.11 -- 3.0 -- 7808 -- 0.0 47.6
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)
2.6 2.74 98.3 -- 0.24 3.0 2.9 --

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 40.0 -- 0.0 -- 7740 410 94.8 -- 0.204 0.204 0.26 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 2.76 -- 60 1217 0.283 0.36 0.046 96.4
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 37.9
Anisotropic B[1][1] 3.41
Anisotropic B[1][2] -2.07
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 3.41
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -6.82
RMS Deviations
Key Refinement Restraint Deviation
c_mcbond_it 1.43
c_angle_deg 1.3
c_bond_d 0.007
c_scbond_it 1.98
c_improper_angle_d 1.17
c_scangle_it 3.09
c_mcangle_it 2.44
c_dihedral_angle_d 25.0
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.3
Luzzati Sigma A (Observed) 0.38
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.43
Luzzati Sigma A (R-Free Set) 0.63
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1966
Nucleic Acid Atoms 0
Heterogen Atoms 22
Solvent Atoms 145

Software

Software
Software Name Purpose
CNS refinement version: 0.5
XDS data reduction
SCALA data scaling
CNS phasing version: 0.5