Key result
Myosin, alpha-actinin, and Sallimus form periodic patterns before actin sorting to drive initial sarcomere assembly.
Why the study?
While the ordered structure of mature sarcomeres is well established, the physical mechanism governing sarcomere assembly is still under debate.
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Hypothesis-generating for sarcomere initiation; leaves open translation to human cardiomyocyte development and disease.
Kolley et al. (2024) studied Sarcomere assembly in muscle cells. Myosin molecular motors, alpha-actinin cross-linkers, and Sallimus form periodic patterns before actin filaments become polarity sorted, driving initial sarcomere assembly.
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