[Term] id: PR:000018541 name: T-cell-specific surface glycoprotein CD28, signal peptide removed form def: "A T-cell-specific surface glycoprotein CD28 that has had the signal peptide removed." [PRO:DNx] comment: Category=modification. synonym: "CD28/SigPep-" EXACT PRO-short-label [PRO:DNx] intersection_of: PR:000001841 ! T-cell-specific surface glycoprotein CD28 intersection_of: lacks_part SO:0000418 ! signal_peptide