Engineered pyrrolysyl-tRNA synthetase (PylRS) from Methanosarcina barkeri (Mb) in complex with ATP


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 30XLEngineered pyrrolysyl-tRNA synthetase (PylRS) from Methanosarcina mazei

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP6293100 mM MES, 10% Isopropanol
Crystal Properties
Matthews coefficientSolvent content
2.5351.43

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 60.67α = 90
b = 63.22β = 95.05
c = 81.64γ = 90
Symmetry
Space GroupP 1 21 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100PIXELDECTRIS EIGER X 16M2025-09-21MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONPETRA III, EMBL c/o DESY BEAMLINE P13 (MX1)0.9763PETRA III, EMBL c/o DESYP13 (MX1)

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
11.553095.30.05411.63.585191
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)
11.551.6596.50.77623.6

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 REPLACEMENTTHROUGHOUT1.553080923425995.340.185320.183770.18470.214440.2161RANDOM31.497
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]
-1.09-0.380.690.46
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg27.82
r_dihedral_angle_4_deg13.081
r_dihedral_angle_3_deg11.57
r_dihedral_angle_1_deg6.257
r_long_range_B_refined4.385
r_mcangle_it2.883
r_scbond_it2.579
r_mcbond_it2.202
r_rigid_bond_restr1.313
r_angle_refined_deg0.986
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg27.82
r_dihedral_angle_4_deg13.081
r_dihedral_angle_3_deg11.57
r_dihedral_angle_1_deg6.257
r_long_range_B_refined4.385
r_mcangle_it2.883
r_scbond_it2.579
r_mcbond_it2.202
r_rigid_bond_restr1.313
r_angle_refined_deg0.986
r_chiral_restr0.08
r_gen_planes_refined0.005
r_bond_refined_d0.003
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_it
r_scangle_other
r_long_range_B_other
r_sphericity_free
r_sphericity_bonded
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms4155
Nucleic Acid Atoms
Solvent Atoms301
Heterogen Atoms70

Software

Software
Software NamePurpose
REFMACrefinement
PDB_EXTRACTdata extraction
XDSdata reduction
XSCALEdata scaling
PHASERphasing