Title: natural killer cell Long Title: IUPAC Gold Book - natural killer cell DOI: 10.1351/goldbook.13499 Status: current Definition Large granular lymphocyte which does not rearrange nor express either immunoglobulin or T-cell receptor (TCR) genes but is able to recognize and destroy certain tumor and virally infected cells in a major histocompatibility complex (MHC) molecule- and antibody-independent manner. Related Terms - T-cell receptor (TCR): https://goldbook.iupac.org/terms/view/13714 - lymphocyte: https://goldbook.iupac.org/terms/view/13399 - major histocompatibility complex (MHC) molecule-: https://goldbook.iupac.org/terms/view/13434 Source - PAC, 2012, 84, 1113. 'IUPAC glossary of terms used in immunotoxicology (IUPAC Recommendations 2012)' on page 1219 (https://doi.org/10.1351/PAC-REC-11-06-03) Other Outputs - html: https://goldbook.iupac.org/terms/view/13499/html - json: https://goldbook.iupac.org/terms/view/13499/json - xml: https://goldbook.iupac.org/terms/view/13499/xml Citation: Citation: 'natural killer cell' 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.13499 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: 2026-05-10T16:16:25+00:00