Structure of radical S-adenosylmethionine methyltransferase, NocN, from Nocardia with two SAM and [4Fe-4S] cluster bound


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 9P2U 

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP296100 mM Hepes pH 7.5, 100 mM Li2SO4, 100 mM MgCl2, 20% w/v PEG 3350, and 10% w/v 1,6-hexanediol
Crystal Properties
Matthews coefficientSolvent content
2.1141.75

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 60.905α = 90
b = 86.223β = 90
c = 145.031γ = 90
Symmetry
Space GroupP 2 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100PIXELDECTRIS PILATUS 6M2019-08-17MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONAPS BEAMLINE 21-ID-G0.97856APS21-ID-G

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)Rpim I (All)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
11.83501000.0377.58.2107057
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)
11.841.871000.8780.9360.3220.8368.2

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (High)Resolution (Low)Cut-off Sigma (F)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)Mean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTFREE R-VALUE1.8341.321.35107057305382.670.17210.17110.17120.20670.206923.64
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]
RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d14.9563
f_angle_d0.8204
f_chiral_restr0.0565
f_plane_restr0.0077
f_bond_d0.0072
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms6173
Nucleic Acid Atoms
Solvent Atoms672
Heterogen Atoms161

Software

Software
Software NamePurpose
PHENIXrefinement
HKL-2000data scaling
HKL-2000data reduction
PHASERphasing