Which of the following is true of proteins?
A) All proteins are acidic.
B) All proteins are basic.
C) All proteins are neutral.
D) The acid/base properties of a protein depend on the identity of its side chains.

Question

Quizplus · Accepted Answer

The acid/base properties of a protein depend on the identity of its side chains. Some amino acid side chains are acidic (e.g. aspartic acid, glutamic acid), some are basic (e.g. lysine, arginine), and some are neutral (e.g. alanine, glycine). The overall charge of a protein at a given pH will depend on the balance of these different side chains.

Which of the Following Is True of Proteins