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_scangle_it 2.732
c_scbond_it 1.815
c_mcangle_it 1.852
c_mcbond_it 1.123
c_improper_angle_d 0.888
c_bond_d 0.008
c_angle_deg 1.421
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

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