RRC ID 39623
著者 Murata-Hori M, Fumoto K, Fukuta Y, Iwasaki T, Kikuchi A, Tatsuka M, Hosoya H.
タイトル Myosin II regulatory light chain as a novel substrate for AIM-1, an aurora/Ipl1p-related kinase from rat.
ジャーナル J Biochem
Abstract Previous studies demonstrated that the phosphorylated myosin II regulatory light chain (MRLC) is localized at the cleavage furrow of dividing cells, suggesting that phosphorylation of MRLC plays an important role in cytokinesis. However, it remains unclear which kinase(s) phosphorylate MRLC during cytokinesis. AIM-1, an Aurora/Ipl1p-related kinase from rat, is known as a serine/threonine kinase that is required for cytokinesis. Here we examined the possibility that AIM-1 is a candidate for a kinase that phosphorylates MRLC during cytokinesis. As a result, we showed that AIM-1 monophosphorylated MRLC at Ser19 using two-dimensional phosphopeptide mapping analysis and several MRLC mutants. Furthermore, AIM-1 was colocalized with monophosphorylated MRLC at the cleavage furrow of dividing cells. We propose here that AIM-1 may participate in monophosphorylation of MRLC during cytokinesis.
巻・号 128(6)
ページ 903-7
公開日 2000-12-1
DOI 10.1093/oxfordjournals.jbchem.a022840
PMID 11098131
MeSH Animals Aurora Kinases Cell Line Humans Myosins / chemistry Myosins / metabolism* Peptide Mapping Phosphorylation Protein Kinases / metabolism* Protein Serine-Threonine Kinases* Rats Substrate Specificity
IF 2.476
引用数 53
WOS 分野 BIOCHEMISTRY & MOLECULAR BIOLOGY
リソース情報
ヒト・動物細胞 COS-7(RCB0539) HeLa(RCB0007)