Protein connecting Z-lines to M-lines
Correct Answer: Titin
Description: The giant protein titin is thought to play major roles in the assembly and function of muscle sarcomeres. Structural details, such as widths of Z- and M-lines and periodicities in the thick filaments, correlate with the substructure in the respective regions of the titin molecule. Sarcomere rest length, its operating range of lengths, and passive elastic propeies are also directly controlled by the propeies of titin.(Ref: <a href="
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