List three different types of posttranslational modifications that may happen to a protein and the significance of each in the context of protein function.

Which of the following posttranslational modifications is defined by the addition of phosphates to a protein?

Which of the following posttranslational modifications are removed once a protein arrives at its final destination?

Which of the following posttranslational modifications marks a protein for degradation?

How may the covalent modification of a protein with a phosphate group alter its function?

Which of the following posttranslational modifications is defined by the addition of phosphates to a protein?