Biology 2382B Lecture : Section 4 Intermediate Filaments.docx
26 Apr 2013
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No atp or gtp needed no polarity, no known motor proteins. Most important thing is that intermediate filaments are important for structural aspects of cell they have strong tensiles strength. Atin cytoskeleton is usually cortical can be involved in things like cell migration. Microtbules are found coming from a centrosome and are for ortganelle transport. Whereas intermediate filametns are involved in integrity holding things in place and providing strength in tissues. Great tensile strength if you pull on it they will not ri. Different intermediate fliamentts are found exclusively in different cells and can be used to determine what cels are. Neurofilametns nfl, nfm nfh, light medium and heavy filaments: if you see nfl you know it"s a nerve cell. The exception here is lamin this is found in most cells support the nuclear membrane. It is found in most cells and supports the nuclear membrane. Keratin is what makes your skin cells as your skin cells are being produced.
