Immunogen sequence: MGYMDPRERD MRMGGGGAMN MGDPYGSGGQ KFPPLGGGGG IGYEANPGVP PATMSGSMMG SDMRTERFGQ GGAGPVGGQG PRGMGPGTPA GYGRGREEYE GPNKKPRF. SFPQ, also named PSF, encodes a nuclear factor implicated in the splicing and regulation of gene expression. SFPQ