The structure of S. aureus alpha-hemolysin in complex with a bicyclic peptide inhibitor


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 4YHD 

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP7.6290.15Protein buffer:30mM HEPES pH 7.6, 150mM NaCl and 1mM TCEP. Crystallisation buffer: 0.2M calcium chloride dihydrate, 0.1M sodium acetate and 20% (w/v) PEG6000.
Crystal Properties
Matthews coefficientSolvent content
2.9157.66

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 53.839α = 71.15
b = 59.041β = 86.36
c = 72.473γ = 70.58
Symmetry
Space GroupP 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100PIXELDECTRIS EIGER2 XE 16M2023-05-21MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONDIAMOND BEAMLINE I040.9537DiamondI04

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (Observed)Rrim I (All)Rpim I (All)CC (Half)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
12.450.7798.70.0930.110.0570.9958.23.630721
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)Rrim I (All)Rpim I (All)CC (Half)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
12.42.49980.5350.6260.3230.8583.7

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (High)Resolution (Low)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-Work (Depositor)R-Work (DCC)R-Free (Depositor)R-Free (DCC)R-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUT2.450.7729166152298.580.164140.161480.16720.214670.2177RANDOM34.978
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]
2.763.44-1.720.23-0.7-0.8
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_3_deg15.3
r_long_range_B_refined7.791
r_long_range_B_other7.791
r_dihedral_angle_2_deg7.374
r_dihedral_angle_1_deg7.219
r_scangle_other5.868
r_mcangle_it4.156
r_mcangle_other4.156
r_scbond_it3.678
r_scbond_other3.678
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_3_deg15.3
r_long_range_B_refined7.791
r_long_range_B_other7.791
r_dihedral_angle_2_deg7.374
r_dihedral_angle_1_deg7.219
r_scangle_other5.868
r_mcangle_it4.156
r_mcangle_other4.156
r_scbond_it3.678
r_scbond_other3.678
r_mcbond_it2.708
r_mcbond_other2.699
r_angle_refined_deg1.502
r_angle_other_deg0.53
r_chiral_restr0.07
r_bond_refined_d0.006
r_gen_planes_refined0.006
r_bond_other_d0.001
r_gen_planes_other0.001
r_dihedral_angle_4_deg
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_scangle_it
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms4760
Nucleic Acid Atoms
Solvent Atoms252
Heterogen Atoms84

Software

Software
Software NamePurpose
REFMACrefinement
Aimlessdata scaling
xia2data reduction
PHASERphasing
PDB_EXTRACTdata extraction