{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,22]],"date-time":"2026-03-22T04:00:21Z","timestamp":1774152021698,"version":"3.50.1"},"reference-count":65,"publisher":"MDPI AG","issue":"7","license":[{"start":{"date-parts":[[2021,7,19]],"date-time":"2021-07-19T00:00:00Z","timestamp":1626652800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Biomolecules"],"abstract":"<jats:p>Proteins of the major histocompatibility complex (MHC) class I, or human leukocyte antigen (HLA) in humans interact with endogenous peptides and present them to T cell receptors (TCR), which in turn tune the immune system to recognize and discriminate between self and foreign (non-self) peptides. Of especial importance are peptides derived from tumor-associated antigens. T cells recognizing these peptides are found in cancer patients, but not in cancer-free individuals. What stimulates this recognition, which is vital for the success of checkpoint based therapy? A peptide derived from the protein p53 (residues 161\u2013169 or p161) was reported to show this behavior. T cells recognizing this unmodified peptide could be further stimulated in vitro to create effective cancer killing CTLs (cytotoxic T lymphocytes). We hypothesize that the underlying difference may arise from post-translational glycosylation of p161 in normal individuals, likely masking it against recognition by TCR. Defects in glycosylation in cancer cells may allow the presentation of the native peptide. We investigate the structural consequences of such peptide glycosylation by investigating the associated structural dynamics.<\/jats:p>","DOI":"10.3390\/biom11071056","type":"journal-article","created":{"date-parts":[[2021,7,19]],"date-time":"2021-07-19T10:07:37Z","timestamp":1626689257000},"page":"1056","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Can Glycosylation Mask the Detection of MHC Expressing p53 Peptides by T Cell Receptors?"],"prefix":"10.3390","volume":"11","author":[{"given":"Thanh Binh","family":"Nguyen","sequence":"first","affiliation":[{"name":"Division of Biomolecular Structure to Mechanism, Bioinformatics Institute, Agency for Science, Technology and Research (A*STAR), Singapore 138671, Singapore"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"David P.","family":"Lane","sequence":"additional","affiliation":[{"name":"p53 Laboratory, Agency for Science, Technology and Research (A*STAR), Singapore 138648, Singapore"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0733-9798","authenticated-orcid":false,"given":"Chandra S.","family":"Verma","sequence":"additional","affiliation":[{"name":"Division of Biomolecular Structure to Mechanism, Bioinformatics Institute, Agency for Science, Technology and Research (A*STAR), Singapore 138671, Singapore"},{"name":"School of Biological Sciences, College of Science, Nanyang Technological University, Singapore 637551, Singapore"},{"name":"Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore 117543, Singapore"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2021,7,19]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"967","DOI":"10.1016\/0161-5890(94)90091-4","article-title":"A cytotoxic T lymphocyte clone can recognize the same naturally occurring self peptide in association with a self and nonself class I MHC protein","volume":"31","author":"Dutz","year":"1994","journal-title":"Mol. 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