Immunogen sequence: LKSVEDEMDS PGEEPFYTGQ GRSPGSGSQS SGWHEVEPGM PSPTTLKKSE KSGFSSPSPS QTSSLGTAFT QHHRPVITGP RASPHATPST LHFPTSPIIQ Q Highest antigen sequence identity to the following orthologs: Mouse - 98%, Rat - 100%. NF-1, also designated CTF, consists