An enzyme that is described as a protein kinase is a

A.  hydrolase that removes an amino acid from a protein.
B.  transferase that transfers a phosphate group to a protein substrate.
C.  ligase that adds an amino acid to a protein.
D.  isomerase that changes one protein into another.
E.  protease that transfers electrons from one protein to another.


B

Anatomy & Physiology

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