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. 2015 Feb 3;108(3):498–507. doi: 10.1016/j.bpj.2014.12.001

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The gap junctions associated with the plicate domains are buried between the elongated projections formed in HF. (A) Removal of a portion of the control ICD shows how the gap junctions are exposed and nestled at the base of the plicae. (B) The gap junctions in HF ICDs are sandwiched between the elongated projections so that they are located deep within the ICD structure. Scale bar = 5 μm. Figure inset; direction of view indicator (red arrow), the disc shape represents the ICD and position of the clipping plane is shown in cyan. To see this figure in color, go online.