Immunogen sequence: RPPQFTRAQW FAIQHISLNP PRCTIAMRAI NNYRWRCKNQ NTFLRTTFAN VVNVCGNQSI RCPHNRTLNN CHRSRFRVPL LHCDLINPGA QNISNCTYAD RPGRRFYVVA CDNRDPRDSP RYPVVPVHLD TTI. ECP (eosinophil cationic protein), also known as RNS3 or RNASE3 (ribonuclease, RNase A