Generation of gene-of-interest double allele knockout clones in primary human T cells by CRISPR

STAR Protoc. 2023 Sep 15;4(3):102445. doi: 10.1016/j.xpro.2023.102445. Epub 2023 Jul 9.

Abstract

Gene-of-interest (GOI) knockout is an important technique to study the genetic mechanisms of T cells. Here, we present a protocol to generate GOI double allele gene knockouts in primary human T cells by CRISPR, thus depleting proteins of interest expressed intracellularly or extracellularly in primary T cells. We describe steps for gRNA selection and efficiency validation, homology-directed repair (HDR) DNA template design and cloning, and genome editing and HDR gene insertion. We then detail clone isolation and GOI knockout validation. For complete details on the use and execution of this protocol, please refer to Wu et al.1.

Keywords: CRISPR; Cell Biology; Cell isolation; Gene Expression; Immunology; Molecular Biology.

MeSH terms

  • Alleles
  • CRISPR-Cas Systems* / genetics
  • Clone Cells
  • Clustered Regularly Interspaced Short Palindromic Repeats* / genetics
  • Humans
  • RNA, Guide, CRISPR-Cas Systems
  • T-Lymphocytes

Substances

  • RNA, Guide, CRISPR-Cas Systems