Protocol to identify SINE-VNTR-Alu regulators using genome-wide screening in human K562 cells

The composite transposon SINE-VNTR-Alu (SVA) is hominid-specific and composed of five parts, but the regulatory mechanism of SVA transcription is still unclear. Here, we present a protocol to identify SVA regulators using genome-wide screening in human K562 cells. We describe steps for constructing an SVA-GFP reporter and performing genome-wide CRISPR-Cas9 screening in human K562 cells to identify genes that control SVA transcription. This protocol provides a representative procedure of genome-wide screening for transposon regulators. For complete details on the use and execution of this protocol, please refer to Zhou et al.¹.