X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 4.6
Details 30% PEG4000, 0.1M SODIUM ACETATE (PH 4.6),0.2M AMMONIUM ACETATE

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 42.76 α = 90
b = 42.76 β = 90
c = 273.76 γ = 120
Symmetry
Space Group P 61 2 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD MARRESEARCH MIRRORS 2002-08-15
Diffraction Radiation
Monochromator Protocol
GRAPHITE MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON EMBL/DESY, HAMBURG BEAMLINE BW7A 0.9611,0.9792,0.9788 EMBL/DESY, Hamburg BW7A

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
1.75 50 97.1 -- 0.072 -- 58.0 -- 16346 -- -- 19.6
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)
1.75 1.81 93.1 -- 0.321 -- -- --

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
MAD 1.75 50.0 -- 0.0 -- 15716 931 96.9 -- 0.205 0.205 0.235 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 1.75 1.86 -- 148 2294 0.241 0.253 0.021 93.0
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 22.4
Anisotropic B[1][1] -1.01
Anisotropic B[1][2] -0.84
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -1.01
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 2.02
RMS Deviations
Key Refinement Restraint Deviation
c_dihedral_angle_d 27.2
c_angle_deg 1.8
c_bond_d 0.016
c_improper_angle_d 1.11
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.2
Luzzati Sigma A (Observed) 0.05
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.24
Luzzati Sigma A (R-Free Set) 0.08
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1228
Nucleic Acid Atoms 0
Heterogen Atoms 16
Solvent Atoms 110

Software

Software
Software Name Purpose
CNS refinement version: 1.0
DENZO data reduction
SCALEPACK data scaling
SOLVE phasing