X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7
Details 2.0M (NH4)2SO4, 100MM TRISHCL PH8.5, 100MM BISTRISHCL PH6.5, 60MM NACL, 4MM MGCL2, 5MM DTT, 50MM NA2W04, pH 7.00

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 130.83 α = 90
b = 130.83 β = 90
c = 328.73 γ = 120
Symmetry
Space Group H 3 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE R-AXIS IV YALE MIRRORS 1998-04-15
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE MSC -- -- --

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
2.5 20 99.3 -- 0.079 -- 6.5 -- 37642 -- -- 59.1
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)
2.5 2.56 92.3 -- 0.38 2.8 2.8 --

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
MOLECULAR REPLACEMENT 2.5 19.84 -- 0.0 -- 37642 1786 97.9 -- 0.213 0.213 0.247 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 2.5 2.66 -- 259 5201 0.341 0.367 0.016 90.4
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 50.6
Anisotropic B[1][1] 3.62
Anisotropic B[1][2] 4.69
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 3.62
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -7.23
RMS Deviations
Key Refinement Restraint Deviation
c_mcangle_it 2.28
c_angle_deg 1.3
c_mcbond_it 1.38
c_bond_d 0.006
c_dihedral_angle_d 23.9
c_scbond_it 2.33
c_scangle_it 3.46
c_improper_angle_d 0.81
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.31
Luzzati Sigma A (Observed) 0.37
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.37
Luzzati Sigma A (R-Free Set) 0.43
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 4720
Nucleic Acid Atoms 0
Heterogen Atoms 55
Solvent Atoms 305

Software

Software
Software Name Purpose
CNS refinement version: 0.9
DENZO data reduction
SCALEPACK data scaling
CNS phasing