[Term] id: PR:000071913 name: T-cell-specific surface glycoprotein CD28 cysteinylated 1 (human) def: "A T-cell-specific surface glycoprotein CD28 (human) that has been cysteinylated on the residue at the position equivalent to Cys-66 of the amino acid sequence represented by UniProtKB:P10747-1. Example: UniProtKB:P10747-1, Cys-66, MOD:00765." [PRO:DNx, IEDB_epitope:1047728] comment: Category=organism-modification. synonym: "hCD28/Cyst:1" EXACT PRO-short-label [PRO:DNx] synonym: "UniProtKB:P10747, Cys-66, MOD:00765" EXACT PRO-proteoform-std [PRO:DNx] synonym: "UniProtKB:P10747-1, Cys-66, MOD:00765" NARROW PRO-proteoform-std [PRO:DNx] is_a: PR:P10747 ! T-cell-specific surface glycoprotein CD28 (human) relationship: has_part MOD:00765 ! cysteinylation (disulfide with free L-cysteine) relationship: only_in_taxon NCBITaxon:9606 ! Homo sapiens