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_scangle_it 3.46
c_scbond_it 2.33
c_mcangle_it 2.28
c_mcbond_it 1.38
c_improper_angle_d 0.81
c_bond_d 0.006
c_angle_deg 1.3
c_dihedral_angle_d 23.9
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

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
CNS Structure Solution
CNS 0.9 Structure Refinement
Software
Software Name Purpose
CNS version: 0.9 refinement
CNS model building