Question: Protein phosphorylation is a post-translational modification of proteins, was first reported in 1906 by which American biochemist who studied the structure and function of nucleic acids, at the Rockefeller Institute for Medical Research?
Sentence (from "Phoebus Levene"): He characterized the different forms of nucleic acid, DNA from RNA, and found that DNA contained adenine, guanine, thymine, cytosine, deoxyribose, and a phosphate group.
Relevant evidence: No