BIOL 2020 Lecture Notes - Lecture 16: Myosin, Immunoglobulin Light Chain
10 Nov 2015
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Document Summary
Different genes code for diff types of actin: all are quite similar to one another even though they"re products of different genes, similar in size, similar amino sequences primary sequence similar among acton, copolymerize. G actin (globular: monomer of actin, three dimensional structure, n terminus and c terminus are essentially side by side due to protein folding, two lobes separated by an atp binding cleft. F actin (filamentous: the microfilament, monomers of g actin come together and hook to one another in the same orientation o, end up with something that has polarity, when a microfilament forms, it"s two f actins wrapped around each other coiled coiled structure. If they interact, forms arrow head like structures arrowheads always face the same way because the myosin is binding the same way all along: creates a barbed end plus end; and a pointed end myosin o, phalloidin toxin.
