biostudies-otherUnknown71(12)Nishigaki KJournal of virology9823-7https://www.ebi.ac.uk/biostudies/studies/S-EPMC230298Long terminal repeats of feline leukemia viruses cloned from feline acute myeloid leukemias frequently contained direct repeats of 40 to 74 bp in the upstream region of the enhancer (URE). The repetitive URE conferred an enhancer function upon gene expression in myeloid cells, suggesting its association with tumorigenic potential in myeloid cells.biostudies-otherPMC230298Europe PMCOkuda MWatari THasegawa AEndo YTsujimoto HNishigaki KfalseStructure and function of the long terminal repeats of feline leukemia viruses derived from naturally occurring acute myeloid leukemias in cats.Long terminal repeats of feline leukemia viruses cloned from feline acute myeloid leukemias frequently contained direct repeats of 40 to 74 bp in the upstream region of the enhancer (URE). The repetitive URE conferred an enhancer function upon gene expression in myeloid cells, suggesting its association with tumorigenic potential in myeloid cells.1997-01-01T00:00:00Z1997 Dec2019-03-27T00:35:52Z2019-03-27T00:35:52ZS-EPMC230298AB003996AB004008AB003997AB004007AB003998AB003999AB004009AB004004AB004003AB003994AB004006AB003995AB004005AB004011AB004010AB004013AB004012AB004019AB004018AB004015AB004014AB004017AB004016AB004000AB004022AB004021AB004002AB004001AB004023AB0040209371654