Which of the following is an acceptable name for the peptide sequence shown below? Glu-Glu-His-Val-Cys

Question

Quizplus · Accepted Answer

The International Union of Pure and Applied Chemistry (IUPAC) recommends using the full name of each amino acid and listing them in order from the N-terminus to the C-terminus. In this case, the peptide sequence is composed of glutamic acid (Glu), histidine (His), valine (Val), and cysteine (Cys). The correct name for this peptide would be "glutamylglutamylhistidylvalylcysteine". Choice A is incorrect because it uses the term "diglutamyl" to indicate two glutamic acid residues, which is not IUPAC-recommended nomenclature. Choices C, D, and E are also incorrect because they do not list the amino acids in order according to the N-terminus to C-terminus and/or they use non-standard abbreviations for amino acids.

Which of the Following Is an Acceptable Name for the Peptide