3STA

Crystal structure of ClpP in tetradecameric form from Staphylococcus aureus


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP6.529510% PEG 3000, 100mM cacodylate, 200mM magnesium chloride, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 295K
Crystal Properties
Matthews coefficientSolvent content
2.5752.22

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 168.572α = 90
b = 96.292β = 91.4
c = 192.614γ = 90
Symmetry
Space GroupC 1 2 1

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
12.25095.31631201554531.21.2
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
12.22.2876.2

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 REPLACEMENTTHROUGHOUT2.28201.2133284129699687797.310.226410.224140.26946RANDOM30.078
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]
0.19-0.67-0.250.03
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg34.77
r_dihedral_angle_4_deg20.423
r_dihedral_angle_3_deg17.785
r_dihedral_angle_1_deg5.067
r_scangle_it1.272
r_angle_refined_deg0.993
r_scbond_it0.743
r_mcangle_it0.566
r_mcbond_it0.33
r_nbtor_refined0.293
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg34.77
r_dihedral_angle_4_deg20.423
r_dihedral_angle_3_deg17.785
r_dihedral_angle_1_deg5.067
r_scangle_it1.272
r_angle_refined_deg0.993
r_scbond_it0.743
r_mcangle_it0.566
r_mcbond_it0.33
r_nbtor_refined0.293
r_nbd_refined0.178
r_symmetry_hbond_refined0.159
r_symmetry_vdw_refined0.145
r_xyhbond_nbd_refined0.12
r_chiral_restr0.061
r_bond_refined_d0.007
r_gen_planes_refined0.002
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms19976
Nucleic Acid Atoms
Solvent Atoms686
Heterogen Atoms

Software

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