Reconstituted Peptide Aggregation: Causes & Prevention
Learn how reconstituted peptide aggregation through nucleation-dependent polymerization reduces bioactive peptide yield and how to prevent it during storage.
Articles
Peptide Aspartate Isomerization & Succinimide Degradation
Learn how reconstituted peptide aspartate isomerization via succinimide-mediated beta-aspartyl shift degrades stored peptides and how pH affects this pathway.
Peptide Beta-Elimination: Crosslink Formation in Storage
Learn how beta-elimination of serine, cysteine, and phosphoserine residues generates dehydroalanine intermediates causing lanthionine crosslinks in reconstituted peptides.
Asp-Pro Peptide Bond Cleavage in Reconstituted Peptides
Learn how Asp-Pro peptide bond cleavage occurs during storage via acid-catalyzed hydrolysis, cyclic anhydride intermediates, and prolyl nitrogen protonation.
Peptide Backbone Fragmentation via Hydroxyl Radicals
Learn how reconstituted peptides degrade through hydroxyl radical-mediated backbone fragmentation during storage in oxygenated solutions with trace metals.
Histidine Oxidation in Peptides: 2-Oxohistidine Formation
Learn how histidine residues in reconstituted peptides undergo metal-catalyzed oxidation to 2-oxohistidine via Fenton chemistry and how to prevent it.
Methionine Sulfoxide Formation in Reconstituted Peptides
Learn how methionine sulfoxide formation occurs in reconstituted peptides through ROS-mediated oxidation, generating R- and S-sulfoxide diastereomers during storage.
Peptide Transglutamination: Isopeptide Crosslinks in Storage
Learn how reconstituted peptides form epsilon-(gamma-glutamyl)lysine isopeptide crosslinks via non-enzymatic transglutamination during storage, causing 17 Da mass losses.
Peptide Proline Cis-Trans Isomerization During Storage
Reconstituted peptides undergo proline cis-trans isomerization during storage, creating conformational heterogeneity that alters biological activity. Learn how temperature and sequence affect stability.
Cysteine Thiol Oxidation in Reconstituted Peptides
Learn how cysteine thiol oxidation in reconstituted peptides leads to sulfenic acid cascades, disulfide bonds, and irreversible degradation during storage.