Which of the following amino acids are linked via metal ions?
A) arginine and glutamic acid
B) glutamic acid and aspartic acid
C) isoleucine and lysine
D) phenylalanine and alanine

Question

Quizplus · Accepted Answer

Glutamic acid and aspartic acid can be linked via metal ions such as calcium or magnesium to form a metal-ion binding site in proteins. Arginine and lysine can also form metal-ion binding sites; however, these are not listed as a choice. The other amino acids (isoleucine, phenylalanine, and alanine) do not typically participate in metal-ion binding in proteins.

Which of the Following Amino Acids Are Linked Via Metal