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Published on Mar 11, 2010
http://creation.com Inside a living cell is an amazing transportation system. Proteins have to be delivered to the correct part of the cell to perform their intended functions. This animation, based on a lot of clever research over a number of years, shows how it happens.
Highways, made of microtubules, are assembled by interlocking proteins, each manufactured in accordance with the coded instructions on the cell's DNA. Marching along a microtubule is the kinesin motor, the hero of our story, carrying a huge sack of proteins to be delivered to a pre-determined place in the cell. Here the proteins will be released to fulfil their functions.
A kinesin linear motor uses one ATP to provide the energy for each step and takes 125,000 steps to cover one millimetre!