Title: Foxp3 Long Title: IUPAC Gold Book - Foxp3 DOI: 10.1351/goldbook.13141 Status: current Definition Transcription repressor that is specifically expressed in CD4+CD25+ T cells. Note Mutations in the FOXP3 gene may lead to an autoimmune syndrome called IPEX (immunodysregulation–polyendocrinopathy–enteropathy, X-linked). Related Terms - CD4+CD25+ T cells: https://goldbook.iupac.org/terms/view/12974 - autoimmune: https://goldbook.iupac.org/terms/view/12918 - immunodysregulation–polyendocrinopathy–enteropathy, X-linked: https://goldbook.iupac.org/terms/view/13283 Source - PAC, 2012, 84, 1113. 'IUPAC glossary of terms used in immunotoxicology (IUPAC Recommendations 2012)' on page 1165 (https://doi.org/10.1351/PAC-REC-11-06-03) Other Outputs - html: https://goldbook.iupac.org/terms/view/13141/html - json: https://goldbook.iupac.org/terms/view/13141/json - xml: https://goldbook.iupac.org/terms/view/13141/xml Citation: Citation: 'Foxp3' 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.13141 License: 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. Collection: If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org . Disclaimer: 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. Accessed: 2026-05-10T18:46:16+00:00