PUBLICATION
Mutation Knock-in Methods Using Single-Stranded DNA and Gene Editing Tools in Zebrafish
- Authors
- Prykhozhij, S.V., Berman, J.N.
- ID
- ZDB-PUB-230906-69
- Date
- 2024
- Source
- Methods in molecular biology (Clifton, N.J.) 2707: 279303279-303 (Chapter)
- Registered Authors
- Berman, Jason, Prykhozhij, Sergey
- Keywords
- CRISPR/Cas9, Disease model, Knock-in, Long ssDNA, Point mutation, Zebrafish, ssODN
- MeSH Terms
-
- Animals
- DNA, Single-Stranded*/genetics
- Gene Editing
- Mutation
- Nucleotides
- Point Mutation
- Zebrafish*/genetics
- PubMed
- 37668920 Full text @ Meth. Mol. Biol.
Citation
Prykhozhij, S.V., Berman, J.N. (2024) Mutation Knock-in Methods Using Single-Stranded DNA and Gene Editing Tools in Zebrafish. Methods in molecular biology (Clifton, N.J.). 2707:279303279-303.
Abstract
Introduction or knock-in of precise genomic modifications remains one of the most important applications of CRISPR/Cas9 in all model systems including zebrafish. The most widely used type of donor template containing the desired modification is single-stranded DNA (ssDNA), either in the form of single-stranded oligodeoxynucleotides (ssODN) (<150 nucleotides (nt)) or as long ssDNA (lssDNA) molecules (up to about 2000 nt). Despite the challenges posed by DNA repair after DNA double-strand breaks, knock-in of precise mutations is relatively straightforward in zebrafish. Knock-in efficiency can be enhanced by careful donor template design, using lssDNA as template or tethering the donor template DNA to the Cas9-guide RNA complex. Other point mutation methods such as base editing and prime editing are starting to be applied in zebrafish and many other model systems. However, these methods may not always be sufficiently accessible or may have limited capacity to perform all desired mutation knock-ins which are possible with ssDNA-based knock-in methods. Thus, it is likely that there will be complementarity in the technologies used for generating precise mutants. Here, we review and describe a suite of CRISPR/Cas9 knock-in procedures utilizing ssDNA as the donor template in zebrafish, point out the potential challenges and suggest possible approaches for their solution ultimately leading to successful generation of precise mutant lines.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping