Positive Samples: HeLa, HepG2, SH-SY5Y Immunogen sequence: MVLLHVLFEH AVGYALLALK EVEEISLLQP QVEESVLNLG KFHSIVRLVA FCPFASSQVA LENANAVSEG VVHEDLRLLL ETHLPSKKKK VLLGVGDPKI GAAIQEELGY NCQTGGVIAE ILRGVRLHFH NLVKGLTDLS ACKAQLGLGH SYSRAKVKFN. ErbB 4 (Her-4, c-e