Immunogen sequence: MDVFLMIRRH KTTIFTDAKE SSTVFELKRI VEGILKRPPD EQRLYKDDQL LDDGKTLGEC GFTSQTARPQ APATVGLAFR ADDTFEALCI EPFSSPPELP DVMKPQDSGS SANEQAVQ; Positive Samples: 22Rv1, NCI-H460, MCF7; Cellular Location: Nucleus. SIII, also known as elongin, is a