2F6E

Clostridium difficile Toxin A C-terminal fragment 1 (TcdA-f1)


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP5.5295250 mM ammonium tartrate, 100 mM sodium acetate, 20% glycerol, pH 5.5, VAPOR DIFFUSION, HANGING DROP, temperature 295K
Crystal Properties
Matthews coefficientSolvent content
2.0640.17

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 42.05α = 90
b = 42.05β = 90
c = 132.11γ = 90
Symmetry
Space GroupP 41 21 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 42004-09-15MMAD
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONALS BEAMLINE 8.3.10.979571,0.979741,1.019867ALS8.3.1

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (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
11.8540.1699.30.0570.05721.46.41071610716-3-315
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)R-Sym I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
11.851.9295.70.1870.1877.46.21015

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (High)Resolution (Low)Number Reflections (All)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (All)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMADTHROUGHOUT1.8540.16101991019951699.040.161910.161910.159790.205RANDOM13.84
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]
0.10.1-0.2
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_1_deg6.328
r_scangle_it5.745
r_scbond_it3.93
r_mcangle_it2.929
r_mcbond_it1.96
r_angle_refined_deg0.996
r_nbd_refined0.185
r_symmetry_vdw_refined0.174
r_xyhbond_nbd_refined0.127
r_symmetry_hbond_refined0.121
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_1_deg6.328
r_scangle_it5.745
r_scbond_it3.93
r_mcangle_it2.929
r_mcbond_it1.96
r_angle_refined_deg0.996
r_nbd_refined0.185
r_symmetry_vdw_refined0.174
r_xyhbond_nbd_refined0.127
r_symmetry_hbond_refined0.121
r_chiral_restr0.074
r_bond_refined_d0.007
r_gen_planes_refined0.003
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms988
Nucleic Acid Atoms
Solvent Atoms167
Heterogen Atoms

Software

Software
Software NamePurpose
REFMACrefinement
DENZOdata reduction
SCALEPACKdata scaling
SOLVEphasing