7LTH

Structure of the alpha-N-methyltransferase (SonM mutant Y93F) and RiPP precursor (SonA) heteromeric complex (no cofactor)

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP		293	Proteins were concentrated at 20 mg/mL and crystallized at pH ranging between 5.5-7 and using PEG 3,350 (0-20%) as precipitant

Crystal Properties
Matthews coefficient	Solvent content
2.27	45.75

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 52.34	α = 90
b = 108.71	β = 93.92
c = 58.96	γ = 90

Symmetry
Space Group	P 1 21 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	PIXEL	DECTRIS EIGER X 16M		2020-03-12	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 23-ID-B	1.033167	APS	23-ID-B

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	CC (Half)	Net I Over Average Sigma (I)	Redundancy	Number Reflections (All)	Number Reflections (Observed)	Observed Criterion Sigma (F)	Observed Criterion Sigma (I)	B (Isotropic) From Wilson Plot
1	2.1	58.82	99.2	0.998	17.5	5.41		38054

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.1	2.2			0.997

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	5N0P	2.1	58.82	36150	1903	99.15	0.1855	0.1832	0.2292	RANDOM	20.587

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]
-1.14		0.19	2.43		-1.3

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.827
r_dihedral_angle_3_deg	13.921
r_dihedral_angle_4_deg	12.842
r_dihedral_angle_1_deg	6.724
r_angle_refined_deg	1.646
r_angle_other_deg	1.446
r_chiral_restr	0.075
r_bond_refined_d	0.012
r_gen_planes_refined	0.01
r_gen_planes_other	0.004

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.827
r_dihedral_angle_3_deg	13.921
r_dihedral_angle_4_deg	12.842
r_dihedral_angle_1_deg	6.724
r_angle_refined_deg	1.646
r_angle_other_deg	1.446
r_chiral_restr	0.075
r_bond_refined_d	0.012
r_gen_planes_refined	0.01
r_gen_planes_other	0.004
r_bond_other_d	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5138
Nucleic Acid Atoms
Solvent Atoms	1007
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
PDB_EXTRACT	data extraction
XDS	data reduction
XSCALE	data scaling
MOLREP	phasing

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.