Figure 4: IMJs are physiologically regulated and do not require mitofusins.
From: Trans-mitochondrial coordination of cristae at regulated membrane junctions

(a) Proportion of mitochondrial IMJs in various cells and tissues. (b) IMJs and cristae alignment occur in cardiomyocytes from wild type (WT), (c) Mfn1 knochout (Mfn1KO), (d) Mfn2KO and (e) inducible Mfn1/Mfn2-double knockout (Mfn1/2DKO) mice.