passages.id: split_5_test_23_passage
passages.type: progene_text
passages.text: To study the potential therapeutic usefulness of these findings , CHO cell lines stably expressing low levels of functionally inactive mutant V2 vasopressin receptors ( E242stop , Y280C , and W284stop ) were created and infected with a recombinant adenovirus coding for the V2 - tail polypeptide .