2WN7

Structural Basis for Substrate Recognition in the Enzymatic Component of ADP-ribosyltransferase Toxin CDTa from Clostridium difficile


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1GIQPDB ENTRY 1GIQ

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
190.1M MIB BUFFER PH 9.0, 20% PEG 1500
Crystal Properties
Matthews coefficientSolvent content
2.4850.51

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 62.057α = 90
b = 46.772β = 97.73
c = 77.722γ = 90
Symmetry
Space GroupP 1 21 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 315MIRRORS2009-01-17MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONDIAMOND BEAMLINE I02DiamondI02

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge 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
12.255095.80.1110.853.72136932.2
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
12.252.3374.90.2732.1

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUTPDB ENTRY 1GIQ2.2539.9719408104695.230.207750.20460.26498RANDOM32.938
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]
0.010.01-0.01
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg33.002
r_dihedral_angle_4_deg16.386
r_dihedral_angle_3_deg14.512
r_dihedral_angle_1_deg5.476
r_scangle_it2.289
r_scbond_it1.312
r_angle_refined_deg1.151
r_mcangle_it0.957
r_mcbond_it0.498
r_chiral_restr0.071
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg33.002
r_dihedral_angle_4_deg16.386
r_dihedral_angle_3_deg14.512
r_dihedral_angle_1_deg5.476
r_scangle_it2.289
r_scbond_it1.312
r_angle_refined_deg1.151
r_mcangle_it0.957
r_mcbond_it0.498
r_chiral_restr0.071
r_bond_refined_d0.008
r_gen_planes_refined0.004
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_mcangle_other
r_scbond_other
r_scangle_other
r_long_range_B_refined
r_long_range_B_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms3141
Nucleic Acid Atoms
Solvent Atoms156
Heterogen Atoms50

Software

Software
Software NamePurpose
REFMACrefinement
HKL-2000data reduction
HKL-2000data scaling
MOLREPphasing