ISDA

X-RAY DIFFRACTION

Crystallization Details

Method	pH	Temprature	Details
X-RAY DIFFRACTION	6.5	291	SAH and inhibitor were added to PRMT1 to a final concentration of 1.5mM each (3% DMSO). The complex was incubated at 4deg C before crystallization. 1uL protein-ligand complex was mixed with 1 uL of reservoir solution containing 0.3M sodium formate, 0.1M HEPES, 8% PEG 10,000, pH 6.5, and 0.2 uL 30% sodium dextran sulfate Mr=5,000). The droplets were incubated against 500uL reservoir solution for 1-2 days before crystals were observed.

Unit Cell:

a: 174.150 Å b: 174.150 Å c: 142.350 Å α: 90.00° β: 90.00° γ: 90.00°

Symmetry:

Space Group: P 41 21 2

Crystal Properties:

Matthew's Coefficient: 3.17 Solvent Content: 61.24

Refinement Statistics

Diffraction ID	Structure Solution Method	Cross Validation Method	Resolution Limit (High)	Resolution Limit (Low)	Number of Reflections (Observed)	Number of Reflections (R-free)	Percent Reflections (Observed)	R-Work	R-Free	Mean Isotropic
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	2.48	38.94	73795	3909	99.95	0.19183	0.22169	22.078

Data Collection

Overall

Resolution Limit (High)	Resolution Limit (Low)	Percent Possible (Observed)	R Merge I (Observed)	R Sym I (Observed)	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
2.48	38.94	100	0.179	?	12.7	9.9	?	77777	?	?	?

Highest Resolution Shell

#	Resolution Limits (Low)	Resolution Limits (High)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.48	2.51	100	?	?	2.7	10.1	?

Diffraction

Diffraction experiment

Crystal ID	Scattering Type	Data Collection Temprature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1		100 K			?

Radiation Source

Source	Type	Wavelength List	Synchrotron Site	Beamline
SYNCHROTRON	APS BEAMLINE 21-ID-D	1.0000	APS	21-ID-D

Software