Movie 1.

Z-stack animation of the myotendinous junction of a single human myofibre. The video displays a Z-stack animation of the myotendinous junction in a single human myofibre from the gracilis muscle. The myofibre MTJ basal membrane (collagen XXII, yellow), sarcolemma (dystrophin, red) and nuclei (Hoechst, grey) are displayed. Note the aggregation of nuclei at the MTJ (in vicinity of collagen XXII, yellow). This myofibre is presented by a maximum intensity projection in figure 1D. Scalebar 100 μm.