Positive Samples: U-87MG, B-cell, Mouse liver; Cellular Location: Cajal body, Cytoplasm, Nucleus, nucleolus, nucleoplasm Immunogen sequence: PGNPVNNQIF LQEYVANLLK SAFPHLQDAQ VKLFVTGLFS LNQDIPAFKE HLRDFLVQIK EFAGEDTSDL FLEEREIALR QADEEKHKRQ MSVPGIFNPH E.