pegRNA

plural pegRNAs

1. countableuncountablemolecular biologybiologyA specialized guide RNA used in prime editing, comprising a single guide RNA (sgRNA) extended with a primer binding site (PBS) and a reverse transcription template (RTT) that encodes the desired genetic edit.

   Upon expression of this prime editing construct, a complex of PE and pegRNA scans the DNA for the target site.

   2024, Kamel A Abd-Elsalam, Aftab Ahmad, Baohong Zhang, editors, CRISPRized Horticulture Crops: Genome Modified Plants and Microbes in Food and Agriculture, Elsevier, page 116

   2 more examples

   Prime editors (PEs), initially represented by PE1, employed a reverse transcriptase (RT) fused to an RNA-programmable nickase (Cas9n) and a prime editing guide RNA (pegRNA) to directly copy genetic information from the extension on the pegRNA into the target genomic locus.

   2020, Narendra Tuteja, Renu Tuteja, Nishat Passricha, Shabnam Saifi, editors, Advancement in Crop Improvement Techniques, Woodhead Publishing, page 165

   Briefly, upon Cas9-mediated nicking of the target site, the extended tail of the pegRNA hybridizes with the free 3' end, which serves as an RT template and encodes the desired edit to be incorporated into the genome.

   2022, Marcello Maresca, Sumit Deswal, editors, Genome Editing in Drug Discovery, John Wiley & Sons, page 332