| 词汇 | myosin |
| 释义 | myosin noun[ C or U ] anatomy specializeduk /ˈmaɪ.ə.sɪn/ us /ˈmaɪ.ə.sɪn/ a protein found in muscle cells that works with actin(= another protein) to make muscles contract(= become shorter). It is also present in some other types of cells: Working cardiac cells contain about 20 percent of a protein called myosin. Thin actin and thick myosin filaments collectively make up the contractile apparatus of the cell. This unleashes myosin to bind actin, and so the muscle contracts. Myosin VI shows different motility behaviours compared to myosin V. Myosins in plants have also been shown to be involved in cytoplasmic streaming. Substances & structures in the body abductor accessorius ACL actin adductor fundus funiculus fusiform glomerular glomerulus navicular neuroendocrine neurohormonal neurohormone nociceptive tendinous tendinum tendo tensor Th You can also find related words, phrases, and synonyms in the topics: Cells Examples of myosinmyosin The myosin head then releases the actin thin filament and returns to its original confirmation ready to interact with another region of the actin filament. The ontogenesis of myosin heavy chain isoforms in the developing human heart. The top row of figures (a to d) illustrates the proposed changes in the organisation of actin and myosin. A novel myosin-like protein (myocilin) expressed in the connecting cilium of the photoreceptor : molecular cloning, tissue expression and chromosomal mapping. The identity of these fibres is confirmed by staining with fibre-specific myosins. The spatial organization is frequently dependent on the cytoskeletal elements, actin, myosin and other contractile molecules. Instead, freshfrozen cryostat sections were used, employing the protocols for actin and myosin described above. Sections were labelled first for actin and then for myosin and vice versa. Diabetes mellitus induces changes in cardiac myosin of the rat. In a to d the proposed changes for the orientation of actin and myosin are depicted. The deduced amino acid sequences for 7 of these corresponded to myosin and for 3 of the clones, the sequences were homologous with paramyosin. These primary and secondary myotubes are also distinguished by their respective initial expression of slow and fast myosin forms. This process may involve the activity of a previously unrecognized actin-myosin microfilament network in the mitotic process. Inhibition of steady state activity of smooth muscle myosin light chain kinase by calmodulin binding peptides and fluorescent calmodulin derivatives. However, 2 of the myosin clones were above 3 kb and 1 of the unique clones was around only 0n6 kb. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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