The report is entitled Characterization of cod myosin aggregates using static and dynamic light scattering and discusses research conducted on Matís on myosin from cod.
Myosin is one of the main building blocks of muscle, both terrestrial and marine. If cross-sectional muscle cells are examined under a microscope, some kind of streak or band can be seen inside the cells. These ligaments mainly contain so-called contraction proteins that make muscle contraction possible. The major contractile proteins are myosin and actin. In the muscle, the molecules of each protein are wrapped in strands, the myosin strands are much thicker and are therefore called the thick strands. The actin filaments, or thin filaments, have evenly distributed terminals for myosin. Myosin and actin are therefore linked in the muscle. When the muscle dissolves, however, this over-organized complex of proteins is disrupted, and actin and myosin can be separated.
Mammalian myosin has been extensively studied, but less frequently in fish. One possible reason is that fish myosin is more unstable than, for example, mammalian myosin. However, it is worth examining its behavior in aqueous solutions, considering that it is probably the main driving force behind the formation of protein gels such as surimi and related foods.