{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Stadinski BD"],"funding":["Intramural NIH HHS","NIDDK NIH HHS","Howard Hughes Medical Institute","NIAID NIH HHS"],"pagination":["10978-83"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC2890771"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["107(24)"],"pubmed_abstract":["A peptide derived from the insulin B chain contains a major epitope for diabetogenic CD4(+) T cells in the NOD mouse model of type 1 diabetes (T1D). This peptide can fill the binding groove of the NOD MHCII molecule, IA(g7), in a number of ways or \"registers.\" We show here that a diverse set of NOD anti-insulin T cells all recognize this peptide bound in the same register. Surprisingly, this register results in the poorest binding of peptide to IA(g7). The poor binding is due to an incompatibility between the p9 amino acid of the peptide and the unique IA(g7) p9 pocket polymorphisms that are strongly associated with susceptibility to T1D. Our findings suggest that the association of autoimmunity with particular MHCII alleles may be do to poorer, rather than more favorable, binding of the critical self-epitopes, allowing T-cell escape from thymic deletion."],"journal":["Proceedings of the National Academy of Sciences of the United States of America"],"pubmed_title":["Diabetogenic T cells recognize insulin bound to IAg7 in an unexpected, weakly binding register."],"pmcid":["PMC2890771"],"funding_grant_id":["P01 AI022295","R56 AI017134","AI-18785","Z01 AI005086","5 U19-AI05086","AI-17134","T32 AI007405","AI050864","U19 AI050864","DK55969","R01 DK055969","P30 DK057516","R01 AI017134","DK057516","R01 AI018785"],"pubmed_authors":["Kappler JW","Eisenbarth GS","Stadinski BD","Zhang L","Marrack P","Crawford F"],"additional_accession":[]},"is_claimable":false,"name":"Diabetogenic T cells recognize insulin bound to IAg7 in an unexpected, weakly binding register.","description":"A peptide derived from the insulin B chain contains a major epitope for diabetogenic CD4(+) T cells in the NOD mouse model of type 1 diabetes (T1D). This peptide can fill the binding groove of the NOD MHCII molecule, IA(g7), in a number of ways or \"registers.\" We show here that a diverse set of NOD anti-insulin T cells all recognize this peptide bound in the same register. Surprisingly, this register results in the poorest binding of peptide to IA(g7). The poor binding is due to an incompatibility between the p9 amino acid of the peptide and the unique IA(g7) p9 pocket polymorphisms that are strongly associated with susceptibility to T1D. Our findings suggest that the association of autoimmunity with particular MHCII alleles may be do to poorer, rather than more favorable, binding of the critical self-epitopes, allowing T-cell escape from thymic deletion.","dates":{"release":"2010-01-01T00:00:00Z","publication":"2010 Jun","modification":"2021-02-19T07:58:51Z","creation":"2019-03-27T00:31:48Z"},"accession":"S-EPMC2890771","cross_references":{"pubmed":["20534455"],"doi":["10.1073/pnas.1006545107"]}}