Abstract
The LINE-1 repeat family is interspersed throughout mammalian genomes and is thought to be the result of duplicative transposition of LINE-1 sequences via an RNA intermediate. This report describes a ribonucleoprotein particle with LINE-1 RNA in the mouse embryonal carcinoma cell line F9. This ribonucleoprotein particle is a potential intermediate in the transposition of LINE-1 in the mouse genome.
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