Shown to bind to epitopes of sequences; LLHGDFHAFSAG-GGGC-NH2, LLHGDFH-GGGC-HN2, and FHAFSAG-GGGC-NH2, but showed no reactivity to live HeLa cells by IF. CD98 (4F2) is a type II transmembrane glycoprotein which serves as the heavy chain of the heterodime