Notes from the bench.

“Store cold, keep it dry, keep it dark” is good advice and a poor explanation. Peptides do not degrade generically; they degrade by specific chemical routes, and which routes are open depends on which residues are in the sequence.

Peptide names are written in a shorthand that assumes you already know it. Ac-Nle-cyclo[Asp-His-D-Phe-Arg-Trp-Lys]-NH2 is a complete and precise description of a molecule, and it is unreadable until someone explains the notation. Here is the w