Gene Manipulation Using Fusion Guide RNAs for Cas9 and Cas12a

Methods Mol Biol. 2021:2162:185-193. doi: 10.1007/978-1-0716-0687-2_10.

Abstract

The clustered regularly interspaced short palindromic repeats (CRISPR)-associated (Cas) protein has emerged as a genome engineering tool for various organisms. Known as the CRISPR-Cas system, Cas endonucleases such as Cas9 and Cas12a (also known as Cpf1) and guide RNA (gRNA) complexes recognize and cleave the target DNA, allowing for targeted gene manipulation. Along with the Cas protein engineering, gRNA engineering has broadened the applications of the CRISPR-Cas system. Recently, we have developed fusion guide RNAs (fgRNAs) for orthogonal gene manipulation using Cas9 and Cas12a. Here, we describe the methods for designing and generating fgRNAs-expression constructs to achieve multiplex genome editing and gene manipulation in human cells.

Keywords: CRISPR-Cas12a; CRISPR-Cas9; Genome engineering; Transcriptional activation; fusion guide RNA.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Bacterial Proteins / genetics*
  • CRISPR-Associated Protein 9 / genetics*
  • CRISPR-Associated Proteins / genetics*
  • CRISPR-Cas Systems / genetics
  • Endodeoxyribonucleases / genetics*
  • Gene Editing / methods*
  • Humans
  • Protein Engineering / methods*
  • RNA, Guide, CRISPR-Cas Systems / genetics

Substances

  • Bacterial Proteins
  • CRISPR-Associated Proteins
  • RNA, Guide, CRISPR-Cas Systems
  • CRISPR-Associated Protein 9
  • Cas12a protein
  • Endodeoxyribonucleases