passages.id: split_6_test_536_passage
passages.type: progene_text
passages.text: Here , we report the identification of a family of alternatively - spliced transcripts of approximately 7.5 kb expressed in latently infected body cavity - based lymphoma ( BCBL ) cell lines which are predicted to encode membrane proteins with similarities to the LMP2A and LMP1 proteins of Epstein - Barr virus .