Cellular Biology | Class 15: Cytoskeleton 4 (Motility)

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Last updated 2:53 AM on 5/10/26
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11 Terms

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Cilia and Flagella function
Hair-like cellular extensions used for swimming or moving fluid across a surface
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Ciliary movement basis
Driven by specialized microtubule-based motor activities
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Cell Migration mechanism
Involves the coordinated polymerization of actin and motor-driven contractions
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LINC Complex in Migration
Essential for nuclear positioning and the movement of the nucleus during migration
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Actin-Myosin in Muscle
The fundamental interaction that drives skeletal muscle contraction
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Myosin Motor energy
Uses ATP hydrolysis to "walk" along actin filaments
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Nucleation spontaneity
Can occur by spontaneous subunit association or via a nucleation factor (nucleator)
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Centrosome location of filaments
Microtubule minus ends are anchored at g-TuRCs while plus ends extend outward
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Actin Nucleotide
Actin subunits bind to and hydrolyze ATP
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Tubulin Nucleotide
Beta-tubulin subunits bind to and hydrolyze GTP
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Microtubule "GTP Cap"
A stable region at the plus end that prevents filament shrinkage