Immunogen sequence: FLPEGGCYEL LTVIGKGFED LMTVNLARYK PTGEYVTVRR INLEACSNEM VTFLQGELHV SKLFNHPNIV PYRATFIADN ELWVVTSFMA YGSAKDLICT HFMDGMNELA IAYILQGVLK ALDYIHHMGY VHRSVKASHI LISVDGKVYL SGLRSNLSMI SHGQRQRVVH DFPKYSVKVL PWLSPE; Positive Samples: Mouse skel