3ST9

Crystal structure of ClpP in heptameric form from Staphylococcus aureus


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP3.5295100mM citric acid, 2.0M ammonium sulfate, pH 3.5, VAPOR DIFFUSION, HANGING DROP, temperature 295K
Crystal Properties
Matthews coefficientSolvent content
2.8356.52

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 121.289α = 90
b = 121.289β = 90
c = 404.377γ = 120
Symmetry
Space GroupP 61 2 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDMARMOSAIC 225 mm CCD2010-09-23MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSSRF BEAMLINE BL17U0.9795SSRFBL17U

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (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
12.435098.9681926744422
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
12.432.5291.5

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (High)Resolution (Low)Cut-off Sigma (F)Number Reflections (All)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUT2.43202.66374863145336499.070.24050.23890.27139RANDOM56.47
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]
1.340.671.34-2.01
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg35.449
r_dihedral_angle_3_deg16.667
r_dihedral_angle_4_deg14.495
r_dihedral_angle_1_deg4.888
r_scangle_it1.394
r_angle_refined_deg0.952
r_scbond_it0.841
r_mcangle_it0.782
r_mcbond_it0.444
r_nbtor_refined0.294
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg35.449
r_dihedral_angle_3_deg16.667
r_dihedral_angle_4_deg14.495
r_dihedral_angle_1_deg4.888
r_scangle_it1.394
r_angle_refined_deg0.952
r_scbond_it0.841
r_mcangle_it0.782
r_mcbond_it0.444
r_nbtor_refined0.294
r_nbd_refined0.18
r_symmetry_vdw_refined0.163
r_xyhbond_nbd_refined0.13
r_symmetry_hbond_refined0.123
r_chiral_restr0.065
r_bond_refined_d0.007
r_gen_planes_refined0.002
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms9294
Nucleic Acid Atoms
Solvent Atoms150
Heterogen Atoms17

Software

Software
Software NamePurpose
ADSCdata collection
PHASESphasing
REFMACrefinement
HKL-2000data reduction
HKL-2000data scaling