X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 6.8
Details 50 MM BIS-TRIS PROPANE PH6.4, 10-11% PEG8000, 0.3 M (NH4)2SO4, 5% GLYCEROL, 5% SUCROSE, 20 MM MGCL2, AND 5 MM SPERMIDINE, PH 6.8, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 277.0K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 78.53 α = 90
b = 274.81 β = 90.11
c = 152.37 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 210 -- 2006-02-22
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON CHESS BEAMLINE A1 -- CHESS A1

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
3.15 25 90.3 0.129 -- -- 5.3 -- 98589 -- -- --
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)
3.15 3.21 83.5 0.539 -- -- 4.6 --

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 3.15 24.83 -- 0.0 -- 98356 1978 88.6 -- 0.264 0.264 0.288 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 3.15 3.35 -- 277 13152 0.345 0.376 0.023 73.0
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model OVERALL
Mean Isotropic B 72.7
Anisotropic B[1][1] 0.0
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 0.0
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 0.0
RMS Deviations
Key Refinement Restraint Deviation
c_improper_angle_d 1.11
c_bond_d 0.01
c_angle_deg 1.4
c_dihedral_angle_d 22.8
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.44
Luzzati Sigma A (Observed) 0.54
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.5
Luzzati Sigma A (R-Free Set) 0.61
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 31616
Nucleic Acid Atoms 3516
Heterogen Atoms 232
Solvent Atoms 76

Software

Computing
Computing Package Purpose
ADSC Quantum Data Collection
HKL-2000 Data Reduction (intensity integration)
HKL-2000 Data Reduction (data scaling)
PHASER Structure Solution
CNS 1.2 Structure Refinement
Software
Software Name Purpose
CNS version: 1.2 refinement
PHASER model building
ADSC version: Quantum data collection