Table 2. Data collection parameters and statistics for the apoferritin dataset.

Data collection
Electron microscope	CRYO ARM 300
Electron detector	K2
Voltage (kV)	300
Defocus range (µm)	0.5–1.5
Pixel size (Å)	0.603
Electron dose (e− Å−2)	48
Images	2348
3D reconstruction
Final particles	89384
Applied symmetry	O
Resolution (Å)	1.9
B factor (Å2)	43