Genetic suppression of a phosphomimic myosin II identifies system-level factors that promote myosin II cleavage furrow accumulation.
Bottom Line: How myosin II localizes to the cleavage furrow in Dictyostelium and metazoan cells remains largely unknown despite significant advances in understanding its regulation.Analysis of several mutant strains revealed that different thresholds of myosin II activity are required for daughter cell symmetry than for furrow ingression dynamics.Finally, an engineered myosin II with a longer lever arm (2xELC), producing a highly mechanosensitive motor, could also partially suppress the intragenic 3xAsp.
Affiliation: Department of Cell Biology, Johns Hopkins University School of Medicine, Baltimore, MD 21205.Show MeSH
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Affiliation: Department of Cell Biology, Johns Hopkins University School of Medicine, Baltimore, MD 21205.