_:b665185499 . _:b665209796 . _:b669073458 . "UPenn Group" . _:b665209796 . _:b669097643 . _:b665185499 . _:b669097643 . _:b665937721 . _:b669073458 . "polyA RNA extract" . _:b665889127 . _:b665913424 . _:b669097643 . _:b665913424 . "A RNA extract that is the output of an extraction process in which RNA molecules with poly A tail at its 3' end are purified."@en . _:b665808318 . . _:b665209796 . _:b665209796 . _:b665937721 . _:b665864830 . _:b669073458 . _:b665808318 . . _:b665864830 . _:b665832615 . . . _:b669097643 . _:b665937721 . _:b665808318 . _:b665185499 . _:b669073458 . "polyA RNA extract" . _:b665832615 . _:b665937721 . _:b665889127 . _:b665832615 . _:b665209796 . _:b665937721 . "PERSON: Chris Stoeckert" . _:b665889127 . "A RNA extract that is the output of an extraction process in which RNA molecules with poly A tail at its 3' end are purified." . _:b665832615 . _:b665913424 . _:b665889127 . _:b665913424 . _:b665864830 . _:b665808318 . _:b665864830 . _:b669097643 . _:b665185499 . _:b665913424 . _:b665185499 . "Preparation of polyA RNA by cellulose-bound oligo-dT (Aviv, H., Leder, P. 1972. Purification of biologically active globin messenger RNA by chromatography on oligothymidylic acid-cellulose. Proc. Nat. Acad. Sci. USA 69, 1408-1412.)" . _:b665864830 . _:b669073458 . _:b665889127 . "PERSON: Jie Zheng" . _:b665808318 . _:b665832615 .