8BN8

METTL3-METTL14 heterodimer bound to the SAM competitive small molecule inhibitor STM3006

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	8	295	150 MM MAGNESIUM ACETATE, 22% W/V PEG 3350

Crystal Properties
Matthews coefficient	Solvent content
2.24	45.08

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 63.97	α = 90
b = 63.97	β = 90
c = 226.48	γ = 120

Symmetry
Space Group	P 32 2 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		2020-04-22	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	DIAMOND BEAMLINE I04	0.9795	Diamond	I04

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	2.213	75.493	100	0.999	12	9.9		27798

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	2.213	2.252			0.611	1.6

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 (All)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	5L6D	2.213	75.493	27797	1377	99.91	0.187	0.1842	0.2442	47.357

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]
-0.126	-0.063		-0.126		0.41

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.215
r_dihedral_angle_4_deg	19.636
r_dihedral_angle_3_deg	16.766
r_dihedral_angle_1_deg	8.2
r_lrange_other	7.901
r_lrange_it	7.899
r_scangle_it	5.613
r_scangle_other	5.612
r_mcangle_other	4.837
r_mcangle_it	4.835
r_scbond_it	3.609
r_scbond_other	3.608
r_mcbond_it	3.154
r_mcbond_other	3.149
r_angle_refined_deg	1.945
r_angle_other_deg	1.356
r_nbd_refined	0.218
r_symmetry_nbd_other	0.195
r_nbd_other	0.179
r_nbtor_refined	0.176
r_symmetry_nbd_refined	0.174
r_xyhbond_nbd_refined	0.149
r_symmetry_xyhbond_nbd_other	0.121
r_symmetry_nbtor_other	0.084
r_chiral_restr	0.081
r_symmetry_xyhbond_nbd_refined	0.077
r_bond_refined_d	0.013
r_gen_planes_refined	0.01
r_gen_planes_other	0.002
r_bond_other_d	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3608
Nucleic Acid Atoms
Solvent Atoms	83
Heterogen Atoms	34

Software

Software
Software Name	Purpose
REFMAC	refinement
autoPROC	data reduction
autoPROC	data scaling
PHASER	phasing