The self primer of the long terminal repeat retrotransposon Tf1 is not removed during reverse transcription.

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Abstract

The long terminal repeat retrotransposon Tf1 of Schizosaccharomyces pombe uses a unique mechanism of self priming to initiate reverse transcription. Instead of using a tRNA, Tf1 primes minus-strand synthesis with an 11-nucleotide RNA removed from the 5’ end of its own transcript. We tested whether the self primer of Tf1 was similar to tRNA primers in being removed from the cDNA by RNase H. Our analysis of Tf1 cDNA extracted from virus-like particles revealed the surprising observation that the dominant species of cDNA retained the self primer. This suggests that integration of the cDNA relies on mechanisms other than reverse transcription to remove the primer.

Publications

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CDK1 Inhibition Targets the p53-NOXA-MCL1 Axis, Selectively Kills Embryonic Stem Cells, and Prevents Teratoma Formation

Stem Cell Reports 2015

Noelle E Huskey, Tingxia Guo, Kimberley J Evason, Olga Momcilovic, David Pardo, Katelyn J Creasman, Robert L Judson, Robert Blelloch, Sco...

Two miRNA Clusters Reveal Alternative Paths in Late-Stage Reprogramming

Cell Stem Cell 2014

Ronald J Parchem, Julia Ye, Robert L Judson, Marie F Larussa,Raga Krishnakumar, Amy Blelloch, Michael C Oldham, Robert Blelloch

MicroRNA-based discovery of barriers to dedifferentiation of fibroblasts to pluripotent stem cells

Nature Structural & Molecular Biology 2013

Robert L Judson, Tobias S Greve, Ronald J Parchem, Robert Blelloch

microRNA Control of Mouse and Human Pluripotent Stem Cell Behavior

Annual Review of Cell and Developmental Biology 2013

Tobias S Greve, Robert L Judson, Robert Blelloch

Multiple targets of miR-302 and miR-372 promote reprogramming of human fibroblasts to induced pluripotent stem cells

Nature Biotechnology 2011

Deepa Subramanyam, Samy Lamouille, Robert L Judson, Jason Y Liu, Nathan Bucay, Rik Derynck, Robert Blelloch

miR-380-5p represses p53 to control cellular survival and is associated with poor outcome in MYCN-amplified neuroblastoma

Nature Medicine 2010

Alexander Swarbrick, Susan L Woods, Alexander Shaw, Asha Balakrishnan, Yuwei Phua, Akira Nguyen, Yvan Chanthery, Lionel Lim, Lesley J Ash...

Opposing microRNA families regulate self-renewal in mouse embryonic stem cells

Nature 2010

Collin Melton, Robert L Judson, Robert Blelloch

Embryonic stem cell-specific microRNAs promote induced pluripotency

Nature Biotechnology 2009

Robert L Judson, Joshua E Babiarz, Monica Venere, Robert Blelloch

The GP(Y/F) domain of TF1 integrase multimerizes when present in a fragment, and substitutions in this domain reduce enzymatic activity of the full-length protein

Journal of Biological Chemistry 2008

Hirotaka Ebina, Atreyi Ghatak Chatterjee, Robert L Judson, Henry L Levin

The self primer of the long terminal repeat retrotransposon Tf1 is not removed during reverse transcription.

Journal of Virology 2006

Angela Atwood-Moore, Kenneth Yan, Robert L Judson, Henry L Levin

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