Positive Samples: HeLa, HepG2 Immunogen sequence: QVMEVEEDPQ TITTEETMEE DKSQSDVDFQ SCESCSNSDR AENENGSRCF SEDNNETTML IQDDENNSEM SKDWQKEKMC NKINKVNSEG EFDKDRDSIS ETVDLNNQET V. DNA-directed RNA polymerase I subunit RPA43 or Twist neighbor protein (Twistnb)b