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The Multiple Roles Of Cyk1p In The Assembly And Function Of The Actomyosin Ring In Budding Yeast, Katie Shannon, Rong Li
The Multiple Roles Of Cyk1p In The Assembly And Function Of The Actomyosin Ring In Budding Yeast, Katie Shannon, Rong Li
Biological Sciences Faculty Research & Creative Works
The budding yeast IQGAP-like protein Cyk1p/Iqg1p localizes to the mother-bud junction during anaphase and has been shown to be required for the completion of cytokinesis. In this study, video microscopy analysis of cells expressing green fluorescent protein-tagged Cyk1p/Iqg1p demonstrates that Cyk1p/Iqg1p is a dynamic component of the contractile ring during cytokinesis. Furthermore, in the absence of Cyk1p/Iqg1p, myosin II fails to undergo the contraction-like size change at the end of mitosis. To understand the mechanistic role of Cyk1p/Iqg1p in actomyosin ring assembly and dynamics, we have investigated the role of the structural domains that Cyk1p/Iqg1p shares with IQGAPs. An amino …