نتایج جستجو برای: mlck
تعداد نتایج: 574 فیلتر نتایج به سال:
Wheat calmodulin (CaM) was labeled at Cys-27 with the sulfhydryl-specific fluorescent probe 2-(4'-maleimidoanilino)-naphthalene-6-sulfonic acid (MIANS), to form MIANS.CaM. In the presence of Ca2+, MIANS.CaM undergoes a large fluorescence increase when it binds myosin light chain kinase (MLCK) and caldesmon (CaD), but little fluorescence change when it binds CaM antagonists or Ca2+. MLCK associa...
The proliferation of hepatocellular carcinoma (HCC) cells is one of the leading causes of liver cancer mortality in humans. The inhibiting effects of matrine on HCC cell proliferation have been studied, but the mechanism of that inhibition has not been fully elucidated. Since, apoptosis plays an important role in HCC cell proliferation. We examined the apoptosis-inducing effect of matrine on tu...
The proliferation of hepatocellular carcinoma (HCC) cells is one of the leading causes of liver cancer mortality in humans. The inhibiting effects of matrine on HCC cell proliferation have been studied, but the mechanism of that inhibition has not been fully elucidated. Since, apoptosis plays an important role in HCC cell proliferation. We examined the apoptosis-inducing effect of matrine on tu...
Inflammatory diseases of the lung are characterized by increases in vascular permeability and enhanced leukocyte infiltration, reflecting compromise of the endothelial cell (EC) barrier. We examined potential molecular mechanisms that underlie these alterations and assessed the effects of diperoxovanadate (DPV), a potent tyrosine kinase activator and phosphatase inhibitor, on EC contractile eve...
5'-(p-(Fluorosulphonyl)[14C]benzoyl)adenosine (FSBA) was synthesized and used as a probe to study the ATP-binding site of smooth-muscle myosin light-chain kinase (MLCK). FSBA modified both free MLCK and calmodulin/MLCK complex, resulting in inactivation of the kinase activity. Nearly complete protection of the calmodulin/MLCK complex against FSBA modification was obtained by addition of excess ...
A specific antibody against myosin light chain kinase (MLCK) was used to identify the presence of a Ca2+-calmodulin-activated MLCK in mouse 1-lymphoma cells. With a double immunofluorescence technique, MLCK was determined to be accumulated directly under Con A-capped structures in a manner similar to that of previously described accumulation of actomyosin. The lymphocyte MLCK was phosphorylated...
Myosin II activation is essential for stress fiber and focal adhesion formation, and is implicated in integrin-mediated signaling events. In this study we investigated the role of acto-myosin contractility, and its main regulators, i.e. myosin light chain kinase (MLCK) and Rho-kinase (ROCK) in cell survival in normal and Ras-transformed MCF-10A epithelial cells. Treatment of cells with pharmaco...
Background: Herpes simplex virus type-1 (HSV-1) is the leading cause of infectious blindness worldwide. Through a multistep process, HSV-1 enters into naturally susceptible human corneal epithelial (HCE) cells where it establishes an optimal environment for viral replication and spread. HSV-1 employment of cytoskeletal proteins, kinases, and cell signalling pathways is crucial for the entry pro...
BACKGROUND Berberine is a natural isoquinoline alkaloid possessing various pharmacological effects, particularly apparent in the treatment of diarrhea, but the underlying mechanism remains unclear. Smooth muscle myosin light-chain kinase (MLCK) plays a crucial role in the smooth muscle relaxation-contraction events, and it is well known that berberine can effectively depress the contraction of ...
MS-282a and MS-282b were isolated from the culture broth of Streptomyces tauricus ATCC 27470 as inhibitors of smooth muscle myosin light chain kinase (MLCK). MS-282a and MS-282b inhibited the activity of chicken gizzard MLCK with IC50 values of 3.8 microM and 5.2 microM, respectively. Cyclic AMP-dependent protein kinase, cyclic GMP-dependent protein kinase and protein kinase C were not inhibite...
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