Chapter title |
Measurements of Myosin-II Motor Activity During Cytokinesis in Fission Yeast.
|
---|---|
Chapter number | 11 |
Book title |
Yeast Cytokinesis
|
Published in |
Methods in molecular biology, January 2016
|
DOI | 10.1007/978-1-4939-3145-3_11 |
Pubmed ID | |
Book ISBNs |
978-1-4939-3144-6, 978-1-4939-3145-3
|
Authors |
Tang, Qing, Pollard, Luther W, Lord, Matthew, Qing Tang, Luther W. Pollard, Matthew Lord |
Editors |
Alberto Sanchez-Diaz, Pilar Perez |
Abstract |
Fission yeast myosin-II (Myo2p) represents the critical actin-based motor protein that drives actomyosin ring assembly and constriction during cytokinesis. We detail three different methods to measure Myo2p motor function. Actin-activated ATPases provide a readout of actomyosin ATPase motor activity in a bulk assay; actin filament motility assays reveal the speed and efficiency of myosin-driven actin filament gliding (when motors are anchored); myosin-bead motility assays reveal the speed and efficiency of myosin ensembles traveling along actin filaments (when actin is anchored). Collectively, these methods allow us to combine the standard in vivo approaches common to fission yeast with in vitro biochemical methods to learn more about the mechanistic action of myosin-II during cytokinesis. |
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