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. Author manuscript; available in PMC: 2014 Jan 18.
Published in final edited form as: Cell. 2013 Jul 18;154(2):285–296. doi: 10.1016/j.cell.2013.06.031

Figure 4. Structure of helical ramps connecting stacked ER sheets.

Figure 4

(A) A 3D reconstruction of the region within the black rectangle of Figure 3A. The sheets are labeled as in Figure 3A (left column). Movie S4 shows a Quicktime movie of this reconstruction being rotated.

(B) As in (A), but from a different view angle. The arrows indicate the handedness of the helical edge.

(C) A 3D reconstruction of the region within the white rectangle of Figure 3A. The sheets are labeled as in Figure 3A (right two columns). Movie S5 shows a Quicktime movie of this reconstruction being rotated.

(D) As in (C), but from a different view angle. The arrows indicate the handedness of the helical edge, which is opposite to that in (A) and (B). See also Figure S3.