BIO 3153 Lecture Notes - Atp Hydrolysis, Intermediate Filament, Treadmilling
20 Nov 2012
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Document Summary
Found in the periphery, occupy the cortex of the cell and provide structure to that cell. Rbc - larger than some capillaries but can squeeze into them. Important for transportation, run the entire length of a nerve terminal to the nerve cell body carrying nutrients. Smallest subunit of an actin filament is a single actin protein. Subunits that help the cortex to be not static. Soluble subunit: smallest element of these structures that will not break down or degrade. Filaments break into subunits, contribute to the pool of subunits, and then build on the other side of the cell, a common pool of subunits is always maintained. 13 protofilaments form a mature microtubule, formed into sheets to increase their stability. Non-covalent bonds found between subunits of microtubules, interactions are lengthwise and adjacent, adds more stability. Less stability on the end, not as many bonds as the subunits in the middle, because of this, addition and removal of subunits can occur.
