Immunogen sequence: IEFVVREGPMF EAMIMNREIN NPMFRFLFEN QTPAHVYYRW KLYSILQGDS PTKWRTEDFR MFKNGSFWRP PPLNPYLHGM S Highest antigen sequence identity to the following orthologs - mouse 100%, rat 100%. U2SURP (U2 SnRNP Associated SURP Domain Containing) is a P