PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 26074926-3 2015 We model this R65-joint in detail, and show that the same TCR"s CDR3alpha loop maintains its CDR2alpha loop at a distance of ~4 A from polymorphic amino acid (a.a.) positions of the alpha-2 helix in all but one of the analyzed crystal structures. cdr3alpha 64-73 T cell receptor beta variable 20/OR9-2 (non-functional) Homo sapiens 58-61 18424733-4 2008 Within this group of improved TCRs, a dual substitution in the 1G4 TCR CDR3alpha chain was identified that enhanced Ag-specific reactivity in gene-modified CD4(+) and CD8(+) T cells. cdr3alpha 71-80 T cell receptor beta variable 20/OR9-2 (non-functional) Homo sapiens 30-33