3ZEI

Structure of the Mycobacterium tuberculosis O-Acetylserine Sulfhydrylase (OASS) CysK1 in complex with a small molecule inhibitor


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1Q3BPDB ENTRY 1Q3B

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1100 MM HEPES, PH8.0, 80% MPD
Crystal Properties
Matthews coefficientSolvent content
3.5465.24

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 71.82α = 90
b = 71.82β = 90
c = 179.63γ = 90
Symmetry
Space GroupP 41 21 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray110CCDADSC QUANTUM 315r2010-10-24MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONESRF BEAMLINE ID23-1ESRFID23-1

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
1256.0999.60.0818.83.6325562
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)
122.111000.7123.8

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 1Q3B256.1530862163599.320.203470.20180.23463RANDOM
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]
1.351.35-2.7
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg33.666
r_dihedral_angle_4_deg14.57
r_dihedral_angle_3_deg13.286
r_dihedral_angle_1_deg5.233
r_angle_refined_deg1.937
r_chiral_restr0.212
r_bond_refined_d0.013
r_gen_planes_refined0.008
r_bond_other_d
r_angle_other_deg
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg33.666
r_dihedral_angle_4_deg14.57
r_dihedral_angle_3_deg13.286
r_dihedral_angle_1_deg5.233
r_angle_refined_deg1.937
r_chiral_restr0.212
r_bond_refined_d0.013
r_gen_planes_refined0.008
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_it
r_mcbond_other
r_mcangle_it
r_mcangle_other
r_scbond_it
r_scbond_other
r_scangle_it
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 Atoms2227
Nucleic Acid Atoms
Solvent Atoms96
Heterogen Atoms60

Software

Software
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
SCALEPACKdata scaling
PHASERphasing