Phosphorylation of ORF1p is required for L1 retrotransposition.

Cook PR, Jones CE, Furano AV
Proc Natl Acad Sci U S A. 2015 Apr 7;112(14):4298-303. doi: 10.1073/pnas.1416869112. Epub 2015 Mar 23. (Link opens in a new window) PubMed (Link opens in a new window) Article

Plasmids from Article

ID	Plasmid	Purpose
190565	pORF1-Flag	Mammalian expression plasmid encoding the first open reading frame (ORF1, expressing the protein ORF1p) of human L1 (L1.3); carries a C-terminus Flag tag.
190566	p5’UTR-ORF1	Holding vector containing the contiguous 5’UTR and ORF1 regions of human L1 (L1.3) to facilitate subcloning of ORF1 mutants into the full-length L1 reporter pRTC2-puro (Cook et al., 2015).
190567	pRTC2-puro	Expresses the full-length human L1 (L1.3) retrotransposon and an engineered neomycin retrotransposition reporter to monitor retrotransposition efficiency in cultured mammalian cells.