کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1928238 | 1050325 | 2015 | 6 صفحه PDF | دانلود رایگان |
• ZIPK is responsible for phosphorylation of MRLC at the contractile ring.
• The cytokinetic abnormalities in ZIPK depleted cells were rescued by phosphorylation-mimic MRLC expression.
• We revealed that ZIPK regulates cytokinesis through MRLC phosphorylation.
Zipper-interacting protein kinase (ZIPK) is known to regulate several functions such as apoptosis, smooth muscle contraction, and cell migration. While exogenously expressed GFP-ZIPK localizes to the cleavage furrow, role of ZIPK in cytokinesis is obscure. Here, we show that ZIPK is a major MRLC kinase during mitosis. Moreover, ZIPK siRNA-mediated knockdown causes delay of cytokinesis. The delay in cytokinesis of ZIPK-knockdown cells was rescued by the exogenous diphosphorylation-mimicking MRLC mutant. Taken together, these findings suggest that ZIPK plays a role in the progression and completion of cytokinesis through MRLC phosphorylation.
Journal: Biochemical and Biophysical Research Communications - Volume 459, Issue 4, 17 April 2015, Pages 686–691