Positive Samples: NIH/3T3, HepG2, MCF7, Mouse liver, Rat liver Immunogen sequence: LRLVVPATQC GSLIGKGGCK IKEIRESTGA QVQVAGDMLP NSTERAITIA GVPQSVTECV KQICLVMLET LSQSPQGRVM TIPYQPMPAS SPVICAGGQD R. This intronless gene is thought to have been generated by