Myosin

Blebbistatin ((±)-Blebbistatin) is a selective non-muscle myosin II (NMII) inhibitor. It promotes directional migration of corneal endothelial cells (CECs) and accelerates wound healing. Furthermore it preserves cell junctional integrity and barrier function.Blebbistatin is an inhibitor of MYH9.

JB062 is a chemical compound acting as a nonmuscle myosin inhibitor, exhibiting IC50 values of 1.6, 5.4, and >100 μM against skeletal muscle myosin, cardiac muscle myosin, and smooth muscle myosin II, respectively. It selectively exhibits cytotoxicity towards human cancer cells without affecting normal cells. The compound is applicable in research fields concerning muscle spasticity, chronic musculoskeletal pain, and hypertrophic cardiomyopathy.

Phenamacril (JS39919) is acyanoacrylate fungicide, has powerful inhibition against Fusarium species, especially to Fusarium graminearum. Phenamacril is a specific Fusarium myosin I inhibitor.

ATM-3507 is a protomyosin inhibitor with anticancer activity that inhibits human melanoma and can be used to study ovarian cancer.

Myosin V-IN-1 is a potent and selective inhibitor of Myosin V with a Ki value of 6 μM.Myosin V-IN-1 inhibits actin V and slows down actin-activated myosin V ATPase by selectively inhibiting the release of ADP from the actinoglobulin complex.

para-Nitroblebbistatin (p-Nitroblebbistatin) is a non-cytotoxic, fluorescent, photostable and specific Myosin II inhibitor. para-Nitroblebbistatin can be used in the study of the special role of myosin II in developmental, physiological,, and cell biological studies.

ML-7 hydrochloride (ML-7 HCl) is a cell-permeable, reversible, effective, ATP-competitive, and specific inhibitor of myosin light chain kinase (Ki: 300 nM); also inhibits smooth-muscle myosin light chain kinase, PKA, and PKC.

HA-100 is an inhibitor of protein kinase

ML-9 suppresses MLCK, PKA, and PKC activity with Ki values of 4, 32, and 54 μM, respectively. ML-9 is a selective and effective inhibitor of Akt kinase, inhibits myosin light-chain kinase (MLCK), and stromal interaction molecule 1 (STIM1) activity. ML-9 causes autophagy by stimulating autophagosome formation and inhibiting their degradation.

(-)-Blebbistatin ((S)-(-)-Blebbistatin) is an S enantiomer of blebbistatin. It is a potent and selective myosin II inhibitor with IC50 ranging from 0.5 to 5 μM.

Thymosin β4 (cattle) TFA is a high-affinity activator of MLCK that operates independently of Ca2+ [1].

Omecamtiv mecarbil (CK-1827452) has been used in trials studying the treatment and basic science of Heart Failure, Echocardiogram, Pharmacokinetics, Chronic Heart Failure, and History of Chronic Heart Failure, among others.

Pentachloropseudilin (PClP) is a reversible variant 1 myosin inhibitor with antimicrobial activity that inhibits Myo1s and class 5 myosins.Pentachloropseudilin inhibits growth factor-beta (TGF-β), which blocks host cell invasion by Trypanosoma cruzi.

W-7 hydrochloride (W-7 HCl), a calmodulin antagonist, inhibits Ca2+-calmodulin-dependent myosin light chain kinase and phosphodiesterase, W-7 hydrochloride induces apoptosis and has antitumor activity.

BTS (N-Tosylbenzylamine) is a potent inhibitor of Ca2+-stimulated myosin S1 ATPase (IC50 : 5 μM) .

JB002, a myosin II inhibitor, exhibits potent activity with an IC50 of ≤10 μM. It holds potential for research applications in muscle spasticity, chronic musculoskeletal pain, and hypertrophic cardiomyopathy.

Danicamtiv (MYK-491) is an inotropic agent and it also is a selective allosteric activator of cardiac myosin. Danicamtiv increases cardiac systolic function and preserves mechanical efficiency.

JB061 is a nonmuscle myosin inhibitor, demonstrating selective inhibitory activity with IC50 values of 4.4 μM (Cardiac muscle myosin), 9.1 μM (Skeletal muscle myosin), and >100 μM (Smooth muscle myosin II). It exhibits limited efficacy in reducing ATPase activity, with an IC50 exceeding 200 μM. Furthermore, JB061 displays cytotoxic effects on COS-7 cells, evidenced by an IC50 value of 39 μM.

Mavacamten (MYK-461) is an orally bioavailable inhibitor of cardiac myosin ATPase,( IC50s of 490, 711 nM for bovine cardiac and human cardiac, respectively)