diumenge, 7 de febrer de 2010

Motor proteins

As we are studying the inner cell, last week I remembered a kind of protein that was the responsible of moving large molecules, gases and glucose.
It's called kinesina and it's, in eukaryotic cells, essential for functions like mitosis,meiosis, and the axonal transport.
The kinesina is the smallest kind of mechanism created by nature, and has a special structure that allows the protein to move along the microtubules,a long neck, and a special dock which is used to stick the charge to the protein.
This kind of proteins is very important to the cell because of it's plenty of utilities,not only by working in meiosis or mitosis,but moving the vesycles, the organelles and all the pieces of the cell that can't move by theirselves.
I thought this information would help my colleagues to understand why some of the cell processes ,such as the nerve impulse, happen.
Here I leave a interesting video from youtube which would show(despite of not being translated) what I have explained before: