Although a Protein's Primary Sequence Can Be Inferred from the Nucleotide

Multiple Choice

Although a protein's primary sequence can be inferred from the nucleotide sequence,modifications such as ______ can be determined most easily by tandem mass spectrometry followed by protein database searching.

A) phosphorylation
B) disulfide crosslinks
C) glycosylation
D) acetylation
E) all of the above