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. 2023 Jul 19;620(7972):128–136. doi: 10.1038/s41586-023-06331-x

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© The Author(s) 2023

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Extended Data Fig. 5 — Summary of CDR3α (left) and CDR3β (right) lengths and motif analysis for the NQK-A8 (top), NQK-Q8 (middle), and both peptides (bottom)-specific TCR clonotypes in unexposed donors. The MEME motif discovery program was used to identify aa motifs enriched; the relative size of each residue symbol is proportional to its frequency, while the total height of aa symbols indicates the information content of the position in bits. The motif on top left panel is the CDR3α 13 amino acid (aa) long sequence motif derived from all CDR3α sequences obtained (n = 165); on the right top panel is the CDR3β 16 aa long sequence motif derived from all CDR3β sequences obtained (n = 220).