Image: CRISPR-Cas9 mode of action
CRISPR-Cas9_mode_of_action.png (717 × 197 pixels, file size: 32 KB, MIME type: image/png)
Description: A duplex of crRNA and tracrRNA acts as guide RNA to introduce a specifically located gene modification based on the RNA 5’ upstream of the crRNA. Cas9 binds the tracrsRNA and needs a DNA binding sequence (5’NGG3’), which is called protospacer adjacent motif (PAM). After binding, Cas9 introduces a DNA double strand break, which is then followed by gene modification via homologous recombination (HDR) or non-homologous end joining (NHEJ).
Title: CRISPR-Cas9 mode of action
Credit: Own work
Author: ViktoriaAnselm
Usage Terms: Creative Commons Attribution-Share Alike 4.0
License: CC BY-SA 4.0
License Link: http://creativecommons.org/licenses/by-sa/4.0
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