Peptide fragment ion

{
  "id": "MLC-T-CHM-008605",
  "term": "Peptide fragment ion",
  "field": "Chemistry",
  "definition": "An ion produced when a peptide precursor ion undergoes dissociation, typically through collision-induced dissociation, breaking specific peptide bonds. These fragment ions retain portions of the original peptide sequence and their mass-to-charge ratios provide information about the amino acid sequence. Common types include b-ions and y-ions, which result from cleavage at the peptide backbone.",
  "subject": "Analytical Chemistry",
  "see_also": [
    "peptide precursor ion"
  ],
  "references": [
    "PAC, 2018, 90, 1121. 'Terminology of bioanalytical methods (IUPAC Recommendations 2018)' on page 1158 (https://doi.org/10.1515/pac-2016-1120)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/peptide-fragment-ion/"
}