N-terminus

{
  "id": "MLC-T-CHM-008091",
  "term": "N-terminus",
  "field": "Chemistry",
  "definition": "The end of a peptide or protein chain that terminates with an amino acid residue having a free amine group (-NH2). By convention, the amino acid sequence of a polypeptide is written starting from the N-terminus on the left and proceeding to the C-terminus on the right. The identity of the N-terminal amino acid can be determined using methods like Edman degradation.",
  "subject": "Analytical Chemistry",
  "references": [
    "PAC, 2018, 90, 1121. 'Terminology of bioanalytical methods (IUPAC Recommendations 2018)' on page 1157 (https://doi.org/10.1515/pac-2016-1120)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/n-terminus/"
}