LET-99 functions in the astral furrowing pathway, where it is required for myosin enrichment in the contractile ring
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LET-99 functions in the astral furrowing pathway, where it is required for myosin enrichment in the contractile ring
The anaphase spindle determines the position of the cytokinesis furrow, such that the contractile ring assembles in an equatorial zone between the two spindle poles. Contractile ring formation is mediated by RhoA activation at the equator by the centralspindlin complex and midzone microtubules. Astral microtubules also inhibit RhoA accumulation at the poles. In the Caenorhabditis elegans one-ce...
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Enhancement of myosin II/actin turnover at the contractile ring induces slower furrowing in dividing HeLa cells.
Myosin II ATPase activity is enhanced by the phosphorylation of MRLC (myosin II regulatory light chain) in non-muscle cells. It is well known that pMRLC (phosphorylated MRLC) co-localizes with F-actin (filamentous actin) in the CR (contractile ring) of dividing cells. Recently, we reported that HeLa cells expressing non-phosphorylatable MRLC show a delay in the speed of furrow ingression, sugge...
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ژورنال
عنوان ژورنال: Molecular Biology of the Cell
سال: 2017
ISSN: 1059-1524,1939-4586
DOI: 10.1091/mbc.e16-12-0874