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3 Cards in this Set
- Front
- Back
Myosin |
Primary motor protein that interacts with Actin. In addition to its role as a thick filament in a myofibril, it can be involved in cellular transport. -Each myosin subunit has a single head and neck; movement at the neck is responsible for the "power stroke" of sarcomere (basic unit of striated muscle) contraction. |
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Kinesins |
Motor protein associated with microtubules. Has 2 heads, at least one of which remains attached to Tubulin at all times. -Align chromosomes in metaphase, depolarize microtubules in anaphase (mitosis) -Bring vesicles (small structures consisting of fluid enclosed by a lipid bilayer) toward Positive end of axonal microtubule (synaptic terminal) |
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Dyneins |
Motor protein associated with microtubules. Has 2 heads, at least one of which remains attached to Tubulin at all times. -Involved in the sliding movements of Cilia and Flagella -Bring vesicles (small structures consisting of fluid enclosed by a lipid bilayer) toward Negative end of axonal microtubule (soma) |