RRC ID 39908
Author Saitoh T, Takemura S, Ueda K, Hosoya H, Nagayama M, Haga H, Kawabata K, Yamagishi A, Takahashi M.
Title Differential localization of non-muscle myosin II isoforms and phosphorylated regulatory light chains in human MRC-5 fibroblasts.
Journal FEBS Lett
Abstract We investigated the localization of non-muscle myosin II isoforms and mono- (at serine 19) and diphosphorylated (at serine 19 and threonine 18) regulatory light chains (RLCs) in motile and non-motile MRC-5 fibroblasts. In migrating cells, myosin IIA localized to the lamella and throughout the posterior region. Myosin IIB colocalized with myosin IIA to the posterior region except at the very end. Diphosphorylated RLCs were detected in the restricted region where myosin IIA was enriched. In non-motile cells, myosin IIA was enriched in peripheral stress fibers with diphosphorylated RLCs, but myosin IIB was not. Our results suggest that myosin IIA may be highly activated by diphosphorylation of RLCs and primarily involved in cell migration.
Volume 509(3)
Pages 365-9
Published 2001-12-14
DOI 10.1016/s0014-5793(01)03186-6
PII S0014-5793(01)03186-6
PMID 11749957
MeSH Cell Movement Fibroblasts / chemistry Fibroblasts / cytology Fluorescent Antibody Technique Focal Adhesions / chemistry Humans Microscopy, Confocal Myosin Light Chains / analysis* Myosin Light Chains / chemistry Nonmuscle Myosin Type IIA / analysis* Nonmuscle Myosin Type IIB / analysis* Phosphorylation Protein Isoforms / analysis Subcellular Fractions / chemistry Vinculin / analysis
IF 3.057
Times Cited 56
WOS Category BIOPHYSICS BIOCHEMISTRY & MOLECULAR BIOLOGY CELL BIOLOGY
Resource
Human and Animal Cells MRC-5