Fig 3. Contour analysis of the published 2017 cryo-EM structure of ABCA1 and associated experimental cryo-EM density.

The left panel displays the ABCA1 structure [25], PDB ID 5XJY, colored from N-terminus to C-terminus as a rainbow gradient from blue to red. The other panels show the original experimental cryo-EM density (emd-6724) contoured at the displayed sigma contour levels. The position of the cytoplasmic Regulatory Domains (RDs) are indicated with brackets in each panel.