Positive Samples: HeLa, 293T, Jurkat, Mouse brain, Mouse spleen Immunogen sequence: MADNPSWDGE KTIIITCSFT PGSCTLTAYK LTPSGYEWGR QNTDKGNNPK GYLPSHYERV QMLLSDRFLG FFMVPAQSSW NYNFMGVRHD PNMKYELQLA NPKEFYHEVH RPSHFLNFAL LQEGEVYSAD REDLYA. Pre-mRNA splicing o