LINE-1 retrotransposition in human embryonic stem cells.
LINE-1 elements comprise approximately 17% of human DNA and their mobility continues to impact genome evolution. However, little is known about the types of non-transformed cells that can support LINE-1 retrotransposition. Here, we show that human embryonic stem cells express endogenous LINE-1 elements and can accommodate LINE-1 retrotransposition in vitro. The resultant retrotransposition events can occur into genes and can result in the concomitant deletion of genomic DNA at the target site. Thus, these data suggest that LINE-1 retrotransposition events may occur during early stages of human development.
Garcia-Perez
Jose L
JL
Departments of Human Genetics and Internal Medicine, University of Michigan Medical School, 1241 E. Catherine Street, Ann Arbor, MI 48109, USA.
Marchetto
Maria C N
MC
Muotri
Alysson R
AR
Coufal
Nicole G
NG
Gage
Fred H
FH
O'Shea
K Sue
KS
Moran
John V
JV
D002454:Cell Differentiation; D002460:Cell Line; D045744:Cell Line, Tumor; D004247:DNA / Q000378:metabolism; D053595:Embryonic Stem Cells / Q000378:metabolism*; D019143:Evolution, Molecular; D016678:Genome; D006801:Humans; D020084:Long Interspersed Nucleotide Elements / Q000235:genetics*; D008858:Microscopy, Phase-Contrast; D008957:Models, Genetic; D010957:Plasmids / Q000378:metabolism; D016133:Polymerase Chain Reaction; D018626:Retroelements / Q000235:genetics*; D014162:Transfection
D018626:Retroelements; D004247:DNA