نتایج جستجو برای: myosin light chain kinase
تعداد نتایج: 898607 فیلتر نتایج به سال:
Isometrically suspended uteri from estrogen-primed rats were stimulated with prostaglandin F2 alpha and then exposed to relaxin. Relaxin-dependent decreases in the ratio of phosphorylated to total myosin light chains (MLC) and in MLC kinase activity, measured in the presence of 0.5 mg/ml of uterine myosin and the absence and presence of Ca2+-calmodulin (CaM), were observed. The time-course and ...
IgE-mediated stimulation of rat basophilic leukemia (RBL-2H3) cells results in the secretion of histamine. Myosin immunoprecipitated from these cells shows an increase in the amount of radioactive phosphate incorporated into its heavy (200 kDa) and light (20 kDa) chains. In unstimulated cells two-dimensional mapping of tryptic peptides of the myosin light chain reveals one phosphopeptide contai...
1. A method for the isolation of a new enzyme, myosin light-chain phosphatase, from rabbit white skeletal muscle by using a Sepharose-phosphorylated myosin light-chain affinity column is described. 2. The enzyme migrated as a single component on electrophoresis in sodium dodecyl sulphate/polyacrylamide gel at pH7.0, with apparent mol.wt. 70000. 3. The enzyme was highly specific for the phosphor...
The respiratory system is directly exposed to low levels of lipopolysaccharide (LPS), present as a contaminant on airborne particles. In cystic fibrosis, the prevailing data identify structural changes of the airway epithelium, as well as tight junction dilatation. This study was aimed at determining the contribution of myosin light chain kinase to maintaining airway epithelium barrier integrit...
Platelets undergo shape change upon activation with agonists. During shape change, disc-shaped platelets turn into spiculated spheres with protruding filopodia. When agonist-induced cytosolic Ca(2+) increases were prevented using the cytosolic Ca(2+) chelator, 5, 5'-dimethyl-bis-(o-aminophenoxy)ethane-N,N,N',N'-tetraacetic acid (5, 5'-dimethyl-BAPTA), platelets still underwent shape change, alt...
Effects of K-262a, (8R*, 9S*, llP)-(-)-Q-hydroxyD-methoxycarbonyl-8-methyl-2,3,9,lO-tetrahydro-8, Il-epoxy-1H,8H,11H-2,7b,lla-triazadibenzo[a,g]cycloocta [cdeltrinden1-one, purified from the culture broth of Nocardiopsis sp., on the activity of myosin light chain kinase were investigated. 1) K-262a (1 X lo-’ M) affected three characteristic properties of chicken gizzard myosin-B, natural actomy...
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