Name a contractile protein in our body. Give an example of a specific movement/muscle these proteins control.

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It is this coupling of chemistry and movement that gives proteins the ... to place the protein in a particular location in the cell—an example is the SH2 ... At one level, the cell controls how many molecules of each enzyme it makes ... One of the best understood pump proteins is the calcium transport protein from muscle cells.

Explanation:

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allowed for the prediction of the properties of missing elements.

it depends on how much it could carry.