Chapter 3 Multiple choice Questions

. Phosphorylation is which of the following?

. The three amino acids most commonly phosphorylated in proteins are:

. The enzyme which removes phosphate groups from proteins is called:

. In the reaction in which a kinase adds a phosphate group to an amino acid on a protein, the phosphate group is donated by which of the following?

. cAMP has many of its downstream effects through which of the following enzymes?

. Hydrogen peroxide is likely to cause the oxidation of which of the following amino acids in a protein?

. Nitric oxide may cause which of the following direct modifications of proteins?

. Which of the following is most likely to cause the direct activation of the enzyme PKC?

. The active form of receptor tyrosine kinases (RTKs) is most likely to have which of the following structures?

. The protein RAF is which of the following?

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