X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 4.6
Details 27-32% PEG MONOMETHYLETHER 2000, 0.1-0.3M AMMONIUM SULFATE, 5% ETHYLENE GLYCOL, 0.1M SODIUM ACETATE PH 4.6

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 59.56 α = 90
b = 72.33 β = 90
c = 107.42 γ = 90
Symmetry
Space Group C 2 2 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
MAR IP 345MM MARRESEARCH TOROIDAL MIRROR 1999-03-15
Diffraction Radiation
Monochromator Protocol
DOUBLE CRYSTAL MONOCHROMATOR MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON EMBL/DESY, HAMBURG BEAMLINE X31 0.94, 0.9765, 0.9770 EMBL/DESY, HAMBURG X31

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
1.82 29.8 98.8 0.059 -- -- 5.2 -- 20642 -- 0.0 11.2
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)
1.82 1.92 97.8 0.281 -- 2.5 3.9 --

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
MAD 1.85 19.91 -- 0.0 -- 19687 1005 98.6 -- 0.1987 0.1987 0.2269 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 1.85 1.97 -- 173 3030 0.216 0.237 0.018 98.5
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 20.3
Anisotropic B[1][1] -0.41
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 0.87
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -0.46
RMS Deviations
Key Refinement Restraint Deviation
c_improper_angle_d 3.16
c_bond_d 0.01
c_angle_deg 1.6
c_dihedral_angle_d 22.5
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.2
Luzzati Sigma A (Observed) 0.1
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.24
Luzzati Sigma A (R-Free Set) 0.13
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1904
Nucleic Acid Atoms 0
Heterogen Atoms 45
Solvent Atoms 198

Software

Computing
Computing Package Purpose
MOSFLM Data Reduction (intensity integration)
CCP4 (SCALA) Data Reduction (data scaling)
CNS 1.0 Structure Refinement
Software
Software Name Purpose
CNS version: 1.0 refinement