X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 8.4
Temperature 277.0
Details PEG4000, SODIUM ACETATE, TRIS-HCL, pH 8.4, VAPOR DIFFUSION, HANGING DROP, temperature 277K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 56.05 α = 90
b = 56.05 β = 90
c = 212.97 γ = 90
Symmetry
Space Group P 41 21 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH MIRRORS 1999-09-20
Diffraction Radiation
Monochromator Protocol
CYCLINDRICALLY BENT CUBED ROOT SI(311) SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SSRL BEAMLINE BL9-1 0.98 SSRL BL9-1

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
1.65 20 0.846 0.054 -- -- 4.6 36289 35546 0.0 0.0 15.8
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)
1.65 1.71 86.5 0.204 -- -- 4.5 --

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 1.65 20.0 0.0 0.0 36289 35546 1763 84.6 0.1915 0.1915 0.1908 0.215 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model ISOTROPIC
Mean Isotropic B 19.98
RMS Deviations
Key Refinement Restraint Deviation
c_mcbond_it 1.123
c_scangle_it 2.732
c_angle_deg 1.421
c_scbond_it 1.815
c_improper_angle_d 0.888
c_mcangle_it 1.852
c_bond_d 0.008
c_dihedral_angle_d 24.57
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.1798
Luzzati Sigma A (Observed) 0.0646
Luzzati Resolution Cutoff (Low) 20.0
Luzzati ESD (R-Free Set) 0.206
Luzzati Sigma A (R-Free Set) 0.116
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2543
Nucleic Acid Atoms 0
Heterogen Atoms 79
Solvent Atoms 237

Software

Software
Software Name Purpose
CNS refinement
DENZO data reduction
SCALEPACK data scaling
CNS phasing