Row 1 shows a schematic representation of the sarcomere. Row 2 shows the three-dimensional sarcomere organization and plasticity at the molecular level (filaments: pink and green, ?-Actinin: blue).
Scientists have produced the first high-resolution 3D image of the sarcomere, the basic contractile unit of skeletal and heart muscle cells, using electron cryo-tomography (cryo-ET). The international ...
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