DKP Formation in Reconstituted Peptides: Causes & Prevention
Learn how diketopiperazine (DKP) formation degrades reconstituted peptides through cyclative cleavage, and how pH, temperature, and residue identity affect stability.
Tag: reconstituted peptide chemistry
Arginine Deimination in Reconstituted Peptides Explained
Learn how non-enzymatic arginine deimination converts arginine to citrulline in reconstituted peptides during storage, causing mass shifts and charge loss.
Peptide Acylation & Succinylation From Anhydride Contaminants
Learn how reconstituted peptides undergo acylation and succinylation via nucleophilic amino group attack on trace anhydride contaminants from glass vials and excipients.
Reconstituted Peptide Pyroglutamate Formation Explained
Learn how reconstituted peptide pyroglutamate formation occurs via N-terminal glutamine cyclization, causing 17-18 Da mass losses during storage.