CRISPR screening¶ 10k A375 Cells Transduced with (1) Non-Target and (1) Target sgRNA, Dual Indexed CROP-seq; 1:1:1 Mixture of DNMT3B, MBD1, and TET2 Knockout Cell Lines (HEK293T) Direct-capture Perturb-seq; CRISPRi-based Screen of Unfolded Protein Response (UPR) Using 3’ sgRNA-CR1cs1