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Contained in each sarcomere are all
has only a few hundred muscle cells, while the structural elements needed to perform the
the medial gastrocnemius (used in humans physical act of contraction at the molecular
for walking) has over a million muscle cells level. Current proteomic analysis estimates
(Feinstein et al. 1955). Not only does the that over 65 proteins make up the structure
number of cells influence muscle function of the sarcomere (Fraterman et al. 2007).
and ultimately, meat quality, but also the Given that the sarcomere is the most basic
structure of the muscle cells themselves unit of the cell and that the number quoted in
has a profound effect on the function of this analysis did not take into account the
living muscle and on the functionality of multiple isoforms of the proteins, this number
meat. is quite high. Many of the proteins interact
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