X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 7.5
Temperature 293.0
Details 20% PEG 8000, 100 mM HEPES, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 293.0K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 54.96 α = 90
b = 57.1 β = 90
c = 82.27 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD MARRESEARCH Dynamically bendable mirror 2001-12-19
Diffraction Radiation
Monochromator Protocol
LN2 cooled fixed-exit Si(111) monochromator SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SLS BEAMLINE X06SA 0.9794 SLS X06SA

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
1.8 20 91.1 -- -- -- -- 23078 23078 1.0 2.0 13.6

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 1.8 20.0 -- 0.0 23078 22449 2207 91.2 0.236 0.236 0.199 0.236 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 17.7
Anisotropic B[1][1] 1.71
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -0.66
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -1.05
RMS Deviations
Key Refinement Restraint Deviation
c_angle_deg 1.21
c_bond_d 0.007
Coordinate Error
Parameter Value
Luzzati Sigma A (Observed) 0.17
Luzzati Resolution Cutoff (Low) 20.0
Luzzati ESD (R-Free Set) 0.25
Luzzati Sigma A (R-Free Set) 0.21
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2328
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 179

Software

Software
Software Name Purpose
DENZO data reduction
SCALA data scaling
CNS refinement
CCP4 data scaling version: (SCALA)
CNS phasing