6Y4L

Crystal structure of human ER membrane protein complex subunits EMC2 and EMC9

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8.3	293.15	34% PEG4000, 0.1 M Tris pH 8.3, and 0.2 M lithium sulfate (For I03 native dataset)
2	VAPOR DIFFUSION, HANGING DROP	8.3	293.15	28% PEG4000, 0.1 M Tris pH 8.3, and 0.2 M lithium sulfate (For I23 S-SAD dataset)

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 52.577	α = 90
b = 84.939	β = 90
c = 122.585	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 EIGER2 X 16M		2019-07-13	M	SINGLE WAVELENGTH
2	1	x-ray		PIXEL	DECTRIS PILATUS 12M		2019-07-03	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	DIAMOND BEAMLINE I03	0.9763	Diamond	I03
2	SYNCHROTRON	DIAMOND BEAMLINE I23	2.755	Diamond	I23

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	2.2	49.7	100	1	17.6	51.9		28668

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	2.2	2.27			0.926	1.9

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	Mean Isotropic B
X-RAY DIFFRACTION	SAD	FREE R-VALUE	XXXX	2.2	49.7	28558	1995	99.81	0.2064	0.2031	0.2499	70.84

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
Key	Refinement Restraint Deviation
f_dihedral_angle_d	11.6878
f_angle_d	0.8437
f_chiral_restr	0.0484
f_bond_d	0.0072
f_plane_restr	0.0053

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3446
Nucleic Acid Atoms
Solvent Atoms	80
Heterogen Atoms	72

Software

Software
Software Name	Purpose
PHENIX	refinement
DIALS	data reduction
PHENIX	phasing
Aimless	data scaling

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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.