Fig. 1
From: An optimized base editor with efficient C-to-T base editing in zebrafish
Base editor in zebrafish using a whole zebrafish codon-optimized BE4 system. a Schematic diagram of the zAncBE4max system. The system consists of whole zebrafish codon-optimized genes/components, including rat deaminase APOBEC1(red), Cas9n D10A nickase (green), two uracil DNA glycosylase inhibitors (purple), and a bipartite NLS at both ends, which convert cytidine to thymine within a window of − 17 to − 13 bases from the PAM of the gRNA. Both zAncBE4max and gRNA are linked to the T7 promoter for in vitro transcription. Prefix “z” indicates zebrafish codon-optimized components. b The targeted genes and corresponding sites designed and used in this study. PAM region (blue); target cytidines (red)