6SJO

Methyltransferase of the MtgA D102A mutant from Desulfitobacterium hafniense in complex with methyl-tetrahydrofolate

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1SJ8

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7.5	293	100 mM HEPES, 27% PEG 3350

Crystal Properties
Matthews coefficient	Solvent content
2.14	42.58

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 77.03	α = 90
b = 84.29	β = 90
c = 87.56	γ = 90

Symmetry
Space Group	P 21 21 21

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		2018-12-01	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SLS BEAMLINE X06SA	1.0	SLS	X06SA

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (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	1.95	30	99.2	0.092	0.998	11.5	5.1		41877

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.95	2.05	99.2		0.579	0.917	2.6

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	1SJ8	1.95	30	39770	2093	99.13	0.1869	0.1851	0.2174	RANDOM	31.928

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]
4.84			-3.19		-1.66

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.813
r_dihedral_angle_4_deg	20.786
r_dihedral_angle_3_deg	13.264
r_dihedral_angle_1_deg	5.905
r_angle_refined_deg	1.297
r_angle_other_deg	1.226
r_rigid_bond_restr	1.014
r_chiral_restr	0.057
r_gen_planes_refined	0.005
r_bond_refined_d	0.004

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.813
r_dihedral_angle_4_deg	20.786
r_dihedral_angle_3_deg	13.264
r_dihedral_angle_1_deg	5.905
r_angle_refined_deg	1.297
r_angle_other_deg	1.226
r_rigid_bond_restr	1.014
r_chiral_restr	0.057
r_gen_planes_refined	0.005
r_bond_refined_d	0.004
r_bond_other_d	0.002
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4679
Nucleic Acid Atoms
Solvent Atoms	76
Heterogen Atoms	63

Software

Software
Software Name	Purpose
REFMAC	refinement
PDB_EXTRACT	data extraction
XDS	data reduction
XSCALE	data scaling
REFMAC	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 R01GM157729.