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Myosin, light chain 12B, regulatory
The activity of nonmuscle myosin II (see MYH9; MIM 160775) is regulated by phosphorylation of a regulatory light chain, such as MRLC2. This phosphorylation results in higher MgATPase activity and the assembly of myosin II filaments (Iwasaki et al., 2001 [PubMed 11942626]).[supplied by OMIM, Mar 2008] (from
Liu et al., In Am J Physiol Lung Cell Mol Physiol, 04 Oct 2015
Over-expressed Cx43 increased the phosphorylation of 20 k Da myosin light chain (MLC20) and the expression of Rock1, and increased the vascular permeability and decreased the transendothelial electrical resistance of pulmonary vein VECs.
Luo et al., Changsha, China. In Naunyn Schmiedebergs Arch Pharmacol, 30 Sep 2015
At the end of experiments, neurological function, infarct volume, cellular apoptosis, activities of MLCK and NOX, messenger RNA (mRNA) and protein expression of NOX (NOX1-NOX4), phosphorylation level of myosin regulatory light chain (MLC20) and hydrogen peroxide (H2O2) level were determined.
Murthy et al., Richmond, United States. In Am J Physiol Cell Physiol, Apr 2015
The aim of this study was to analyze the expression of CSE and H2S function in the regulation of MLCP activity, 20-kDa regulatory light chain of myosin II (MLC20) phosphorylation, and contraction in isolated gastric smooth muscle cells.
Seow et al., Vancouver, Canada. In Can J Physiol Pharmacol, Feb 2015
The standard method for measuring the phosphorylation of the regulatory myosin light chain (MLC20) in smooth muscle is extraction of the light chain using a urea extraction buffer, urea-glycerol gel electrophoresis of the soluble portion of the extract (supernatant) and Western blot analysis.
Zhu et al., Chongqing, China. In Plos One, Dec 2014
Mechanistically, the decreased concentration of MLCK, phospho-MLC20 and phospho-MYPT1 and increased concentration of MLCP and PKC were observed after TBI, and these events mediated by TBI were efficiently prevented by Lactobacillus acidophilus application.
Egelhoff et al., Cleveland, United States. In Bmc Cell Biol, 2010
The study data show that manipulation of the activation sites (Thr18/Ser19) significantly alters myosin II function in a number of these assays while manipulation of the putative inhibitory sites (Ser1/Ser2/Thr9) does not.
Fust et al., Winnipeg, Canada. In Can J Physiol Pharmacol, 2007
Nevertheless, we did find that content and total activity of smooth muscle myosin light chain kinase (smMLCK) and the abundance of its message were greater; this would explain the increased MLC20 phosphorylation.
Murthy, Richmond, United States. In Annu Rev Physiol, 2005
Phosphorylation of Ser19 on the 20-kDa regulatory light chain of myosin II (MLC20) by Ca2+/calmodulin-dependent myosin light-chain kinase (MLCK) is essential for initiation of smooth muscle contraction.