1. Signaling Pathways
  2. Cytoskeleton
  3. Myosin


Myosin light chain kinase (MLCK) is a ubiquitous Ca2+/calmodulin (CaM)-activated kinase found in smooth, cardiac, and skeletal muscle as well as in mammalian nonmuscle cells.

Myosin light chain kinase (MLCK) is a regulatory protein forsmooth muscle contraction, which acts by phosphorylating 20-kDamyosin light chain (MLC20) to activate the myosin ATPase activity.Myosin light chain kinase (MLCK) of smooth muscle hasbeen puried as an enzyme that phosphorylates 20-kDa lightchain of smoothmuscle myosin (MLC20).

Analysis of the cross talk between Ras-ERK and PI3K-AKT signaling pathways reveals integrin β1, myosin light chain kinase (MLCK) and myosin IIA are required for the activation of PI3K-AKT following inhibition of the Ras-ERK pathway. Integrin β1, MLCK, and myosin IIA are factors in the development of resistance to MEK inhibitors.

Myosin light chain kinase (MLCK) phosphorylates the regulatory light chain (RLC) of myosin producing increases in force development during skeletal muscle contraction.

Myosin Related Products (12):

Cat. No. Product Name Effect Purity
  • HY-13441
    (-)-Blebbistatin Inhibitor 99.42%
    (-)-Blebbistatin is an S enantiomer of blebbistatin. Blebbistatin is a potent and selective myosin II inhibitor with IC50s ranging from 0.5 to 5 μM.
  • HY-14233
    Omecamtiv mecarbil Activator 99.28%
    Omecamtiv mecarbil is a selective cardiac myosin activator.
  • HY-15417
    ML-7 hydrochloride Inhibitor 98.18%
    ML-7 hydrochloride is a naphthalene sulphonamide derivative, potently inhibits MLCK (IC50=300 nM).
  • HY-100984
    HA-100 Inhibitor 99.76%
    HA-100 is an inhibitor of cGMP-dependent protein kinase (PKG), cAMP-dependent protein kinase (PKA), protein kinase C (PKC) and MLC-kinase with IC50s of 4, 8, 12 and 240 μM, respectively.
  • HY-P1029
    MLCK inhibitor peptide 18 Inhibitor 98.71%
    MLCK inhibitor peptide 18 is a myosin light chain kinase (MLCK) inhibitor with an IC50 of 50 nM, and inhibits CaM kinase II only at 4000-fold higher concentrations.
  • HY-100948B
    ATM-3507 trihydrochloride Inhibitor 98.10%
    ATM-3507 trihydrochloride is a potent tropomyosin inhibitor with IC50s from 3.83-6.84 μM in human melanoma cell lines.
  • HY-120870
    para-Nitroblebbistatin Inhibitor
    para-Nitroblebbistatin is a non-cytotoxic, photostable, fluorescent and specific Myosin II inhibitor, usd in the study of the specific role of myosin II in physiological, developmental, and cell biological studies.
  • HY-13813
    Blebbistatin Inhibitor
    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.
  • HY-16690
    BTS Inhibitor 99.78%
    BTS is a potent inhibitor of Ca2+-stimulated myosin S1 ATPase (IC50 ~ 5 μM) and reversibly blocks the gliding motility.
  • HY-109037
    Mavacamten Modulator 99.94%
    Mavacamten is a modulator of cardiac myosin, with IC50s of 490, 711 nM for bovine cardiac and human cardiac, respectively.
  • HY-100948
    ATM-3507 Inhibitor
    ATM-3507 is a potent tropomyosin inhibitor with IC50s from 3.83-6.84 μM in human melanoma cell lines.
  • HY-100685
    MS-444 Inhibitor
    MS-444 inhibits the activity of purified smooth muscle myosin light chain kinase (MLCK) with an IC50 value of 10 μM.
Isoform Specific Products

Your Search Returned No Results.

Sorry. There is currently no product that acts on isoform together.

Please try each isoform separately.