09751 IUPAC Gold Book - MS/MS data based identification 10.1351/goldbook.09751 09751 current 1 Mass spectrometric method used for protein/peptide identification based on protein sequencing. Using peptide ion fragments, the peptide sequence is read and a list of hit candidates is obtained in combination with database searching. database searching https://goldbook.iupac.org//terms/view/09738 protein sequencing https://goldbook.iupac.org//terms/view/11547 PAC, 2018, 90, 1121. 'Terminology of bioanalytical methods (IUPAC Recommendations 2018)' on page 1157 (https://doi.org/10.1515/pac-2016-1120) https://goldbook.iupac.org/terms/view/09751/html https://goldbook.iupac.org/terms/view/09751/json https://goldbook.iupac.org/terms/view/09751/plain Citation: 'MS/MS data based identification' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.09751 The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) for individual terms. If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org . The International Union of Pure and Applied Chemistry (IUPAC) is continuously reviewing and, where needed, updating terms in the Compendium of Chemical Terminology (the IUPAC Gold Book). Users of these terms are encouraged to include the version of a term with its use and to check regularly for updates to term definitions that you are using. 2026-04-18T03:52:53+00:00