6DJ4

Crystal Structure of Bacillus thuringiensis Cry1A.105 Tryptic Core


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP6294Crystals were obtained using a precipitant/reservoir solution of 5% (w/v) PEG 4000, 0.1 M sodium citrate buffer, pH 6, and 10% isopropanol. Micro-seeding was required to obtain crystals sizable enough for X-ray intensity data collection at the synchrotron.
Crystal Properties
Matthews coefficientSolvent content
2.2745.81

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 124.375α = 90
b = 49.441β = 108.65
c = 103.692γ = 90
Symmetry
Space GroupC 1 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDMARMOSAIC 300 mm CCD2006-03-01MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONAPS BEAMLINE 22-ID1.000APS22-ID

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Sym I (Observed)Net I Over Average Sigma (I)RedundancyNumber Reflections (All)Number Reflections (Observed)Observed Criterion Sigma (F)Observed Criterion Sigma (I)B (Isotropic) From Wilson Plot
13.0198.2596.90.1399.93.211744
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R-Sym I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
13.013.1197.30.5032.23.3

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Cut-off Sigma (F)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTFREE R-VALUECryIAa3.0149.1241.341174155896.410.22180.2190.2791
Temperature Factor Modeling
Anisotropic B[1][1]Anisotropic B[1][2]Anisotropic B[1][3]Anisotropic B[2][2]Anisotropic B[2][3]Anisotropic B[3][3]
RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d2.643
f_angle_d0.541
f_chiral_restr0.042
f_plane_restr0.005
f_bond_d0.002
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms4551
Nucleic Acid Atoms
Solvent Atoms27
Heterogen Atoms

Software

Software
Software NamePurpose
PHENIXrefinement
HKL-2000data reduction
HKL-2000data scaling
PHASERphasing