2. Signaling Pathways
  3. Cytoskeleton
  4. Myosin

Myosin

Myosin

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Myosins are mechanoenzymes that interact with actin filaments and hydrolyse ATP to generate movement and force. This enables myosins to propel the sliding of actin filaments, to produce tension on actin filaments and to walk along these filaments. As a result, myosins can regulate the structure and dynamics of the actin cytoskeleton and affect the localization and transport of cellular components. The different myosins are grouped into classes on the basis of their motor domains. There are 35 known classes of myosin, and humans have 40 myosin genes that fall into 13 classes (I, II, III, V, VI, VII, IX, X, XV, XVI, XVIII, XIX and XXXV).

Myosins are actin-dependent motors that participate in a diverse range of crucial activities, including muscle contraction, intracellular trafficking, cell division, motility, actin cytoskeletal organisation and cell signaling. Myosin malfunction has been implicated in a variety of disorders including deafness, hypertrophic cardiomyopathy, Usher syndrome, Griscelli syndrome and cancer.

Myosin light chain kinase (MLCK) is an enzyme that activates the myosin light chain to exert its function related to cytoskeleton contraction and tight junction regulation. In most cells, MLCK is a transducer for signalling MLC phosphorylation in response to Ca2+ binding to MLCK-associated calmodulin. MLCK-mediated MLC phosphorylation and actomyosin contractility is important in muscle contraction, cell migration, and endo/exocytic processes, and is recognized for its central role in signalling endothelial cell-cell adhesion and barrier function.

Cat. No. Product Name Effect Purity Chemical Structure
  • HY-161609
    Myosin modulator 2
    		Modulator
    Myosin modulator 2 (Compound B172) is a modulator for myosin, that inhibits ATPase in rabbits psoas, porcine atria and in porcine ventricle, with IC25s of 2.013, 2.94 and 20.93 μM, respectively. Myosin modulator 2 regulates systolic cardiac performance in Sprague Dawley rats.
    Myosin modulator 2
  • HY-170318
    Adhibin
    		Inhibitor
    Adhibin is an allosteric inhibitor for RhoGAP class IX myosin, that inhibits Myo9 ATPase in mammalian and invertebrate with IC50 of 2.5 µM and 2.6 µM. Adhibin binds to the ATPase of myosin, interfers with its motor function, blocks the RhoGTPase related signaling pathway, and affects the cell migration, adhesion and cell division. Adhibin can be used in research about cancer metastasis.
    Adhibin
  • HY-109128S1
    Danicamtiv-d3
    Danicamtiv-d3 (MYK-491-d3) is a deuterated labeled Danicamtiv (HY-109128). Danicamtiv (MYK-491), an inotropic agent, is a selective allosteric activator of cardiac myosin. Danicamtiv increases cardiac systolic function and preserves mechanical efficiency.
    Danicamtiv-d<sub>3</sub>
  • HY-N15301
    Nocarnickelamide B
    		Inhibitor
    Nocarnickelamide B (Compound 2) is a linear peptide and ROCK1/2 inhibitor. Nocarnickelamide B exhibits dual inhibitory activity against ROCK1 and ROCK2 with IC50s of 14.9 μM and 21.9 μM, respectively. Nocarnickelamide B binds to the ATP-binding site. Nocarnickelamide B inhibits the activation of ROCK-regulated cytoskeletal contraction markers such as the myosin light chain. Nocarnickelamide B is potential for glaucoma reasearch.
    Nocarnickelamide B
  • HY-P5998
    Myosin Light Chain Kinase Substrate (smooth muscle)
    Myosin Light Chain Kinase Substrate (smooth muscle) is a smooth muscle myosin light chain kinase (MLCK) synthetic peptide substrate.
    Myosin Light Chain Kinase Substrate (smooth muscle)
  • HY-13813R
    Blebbistatin (Standard)
    		Inhibitor
    Blebbistatin (Standard) is the analytical standard of Blebbistatin. This product is intended for research and analytical applications. Blebbistatin is a selective non-muscle myosin II (NMII) inhibitor, promotes directional migration of corneal endothelial cells (CECs) and accelerates wound healing, and better preserves cell junctional integrity and barrier function. Blebbistatin blocks cell migration.
    Blebbistatin (Standard)
  • HY-109037S
    Mavacamten-d6
    		Modulator
    Mavacamten-d6 (MYK461-d6; SAR439152-d6) is deuterium labeled Mavacamten (HY-109037). Mavacamten (MYK461) is an orally active modulator of cardiac myosin, with IC50s of 490, 711 nM for bovine cardiac and human cardiac, respectively.
    Mavacamten-d<sub>6</sub>
  • HY-133885A
    R-(-)-7-Desmethyl-8-nitro blebbistatin
    		Control
    R-(-)-7-Desmethyl-8-nitro blebbistatin is an analog of (-)-Blebbistatin (HY-13441). (-)-Blebbistatin is a selective non-muscle myosin II inhibitor.
    R-(-)-7-Desmethyl-8-nitro blebbistatin
  • HY-109037S4
    Mavacamten-d7
    		Modulator
    Mavacamten-d7 (MYK461-d7) is deuterium labeled Mavacamten. Mavacamten (MYK461) is an orally active modulator of cardiac myosin, with IC50s of 490, 711 nM for bovine cardiac and human cardiac, respectively.
    Mavacamten-d<sub>7</sub>
  • HY-109037S2
    Mavacamten-d1
    		Modulator
    Mavacamten-d1 (MYK461-d1; SAR439152-d1) is deuterium labeled Mavacamten (HY-109037). Mavacamten (MYK461) is an orally active modulator of cardiac myosin, with IC50s of 490, 711 nM for bovine cardiac and human cardiac, respectively.
    Mavacamten-d<sub>1</sub>
  • HY-163120
    Myosin-IN-1
    		Inhibitor
    Myosin-IN-1 (compound F10) is a Myosin inhibitor that specifically targets cardiac myosin. Myosin-IN-1 stabilizes the biochemical and structural closed state of the cardiac myosin motor domain and reduces myocardial force production and calcium sensitivity in vitro. Myosin-IN-1 acts as a negative inotropic agent in isolated Langendroff-perfused rat hearts, reducing stress in isolated myofilaments and left ventricular pressure development. Myosin-IN-1 can be used in heart failure research.
    Myosin-IN-1
  • HY-109037R
    Mavacamten (Standard)
    		Modulator
    Mavacamten (Standard) is the analytical standard of Mavacamten. This product is intended for research and analytical applications. Mavacamten (MYK461) is an orally active modulator of cardiac myosin, with IC50s of 490, 711 nM for bovine cardiac and human cardiac, respectively.
    Mavacamten (Standard)
  • HY-172424
    Delocamten
    		Inhibitor
    Delocamten is the inhibitor for cardiac myosin with an IC50 of 1.1 μM. Delocamten can be used in researchs of hypertrophic cardiomyopathy, left ventricular hypertrophy and diastolic dysfunction.
    Delocamten
  • HY-W759845
    Aficamten-d3
    		Inhibitor
    Aficamten-d3 (CK-274-d3) is deuterium labeled Aficamten. Aficamten (CK-274) is a potent cardiac myosin inhibitor with an IC50 of 1.4 μM. Aficamten can be used for the research of hypertrophic cardiomyopathy (HCM).
    Aficamten-d<sub>3</sub>
Cat. No. Product Name / Synonyms Application Reactivity