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Myosin II (also known as conventional myosin) is the myosin type responsible for producing muscle contraction in muscle cells in most animal cell types. It is also found in non-muscle cells in contractile bundles called stress fibers .
The myosin head is the part of the thick myofilament made up of myosin that acts in muscle contraction, by sliding over thin myofilaments of actin.Myosin is the major component of the thick filaments and most myosin molecules are composed of a head, neck, and tail domain; the myosin head binds to thin filamentous actin, and uses ATP hydrolysis to generate force and "walk" along the thin filament.
Myosin essential light chain (ELC), ventricular/cardiac isoform is a protein that in humans is encoded by the MYL3 gene. [ 5 ] [ 6 ] [ 7 ] This cardiac ventricular/slow skeletal ELC isoform is distinct from that expressed in fast skeletal muscle ( MYL1 ) and cardiac atrial muscle ( MYL4 ).
Smooth muscle tissue is mostly made of actin and myosin, [3] two proteins that interact together to produce muscle contraction and relaxation. Myosin II, also known as conventional myosin, has two heavy chains that consist of the head and tail domains and four light chains (two per head) that bind to the heavy chains in the “neck” region.
Myosin-1, also known as 'striated muscle myosin heavy chain 1', is a protein that in humans is encoded by the MYH1 gene. [5] [6] This gene is most highly expressed in fast type IIX/D muscle fibres of vertebrates and encodes a protein found uniquely in striated muscle; it is a class II myosin with a long coiled coil tail that dimerizes and should not be confused with 'Myosin 1' encoded by the ...
Myosin-9 also known as myosin, heavy chain 9, non-muscle or non-muscle myosin heavy chain IIa (NMMHC-IIA) is a protein which in humans is encoded by the MYH9 gene. [5] [6]Non-muscle myosin IIA (NM IIA) is expressed in most cells and tissues where it participates in a variety of processes requiring contractile force, such as cytokinesis, cell migration, polarization and adhesion, maintenance of ...
With regards to human anatomy myosin and actin constitute the basic functional unit of a muscle fiber, called sarcomere, playing a role in muscle contraction. Biochemically viewed meromyosin form subunits of the actin-associated motor protein, myosin, as commonly obtained by trypsin proteolysis (protein breakdown). [1]
17882 Ensembl ENSG00000125414 ENSMUSG00000033196 UniProt Q9UKX2 G3UW82 RefSeq (mRNA) NM_017534 NM_001100112 NM_001039545 NM_144961 RefSeq (protein) NP_001093582 NP_060004 NP_001034634 Location (UCSC) Chr 17: 10.52 – 10.55 Mb Chr 11: 67.06 – 67.09 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Myosin-2 (myosin heavy chain 2) is a protein that in humans is encoded by the MYH2 gene ...