passages.id: split_6_test_2664_passage
passages.type: progene_text
passages.text: 5' - RNA ligase - mediated rapid amplification of cDNA ends evaluation of ICA1 transcripts expressed in human islets , testis , heart , and cultured neuroblastoma cells reveals that three 5' - untranslated region exons are variably expressed from the ICA1 gene in a tissue - specific manner .