Immunogen sequence: KNSFTKLSIE PAFTPGPNIE LQKDSDCCSC QEKWVGYRCN CYFISSEQKT WNESRHLCAS QKSSLLQLQN TDELDFMSSS QQFYWIGLSY SEEHTAWLWE NGSALSQYLF PSFETFNTKN CIAYNPNGNA LDESCEDKNR YICKQQLI. Natural killer (NK) cells, like CD94, are a distinct lineage of lympho