BIO 1140 Lecture Notes - Lecture 5: Endomembrane System, Dynein, Membrane Potential
12 Aug 2016
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Both emerge from basal bodies formed by spindles. 9 doublets in a circle with a doublet in the center same for both. Cross-linker protein = nexin (anchor: given the structure of cilia and flagella, what would happen if there was no anchor (as provided by nexin), the microtubule doublets would slide apart. The motor protein is walking, using one doublet as its cargo and another as its floor, creating the motion/bend between the doublets. Dynein is walking towards the cell (minus end) of the doublets. Each doublet has a series of motor proteins. Nexin makes sure it"s a bend rather than a separation; the length determines whether it"s quick (cilia) or s-wave-like (flagella) Centrosomes are two centrioles in an l; each is made with 9 triplets so as they expand, they radiate in all directions of the cell. A single microtubule in the center no triplet usually none at all (not even one) 9 times 3.
