Figure 2. WNK1 is an EMC assembly factor.

(A) HeLa EMC2-GFP CRISPR knock-in cells, in which EMC2 is expressed from its endogenous promoter, were transduced to stably express either a scrambled control or WNK1 shRNA and then analyzed for GFP fluorescence by flow cytometry. (B) HEK293T cell lines stably expressing EMC4-GFP, RFP-squalene synthase (SQS; a tail-anchored EMC substrate) and RFP-VAMP2 (a tail-anchored WRB-CAML substrate) or an unfused control (GFP-2A-RFP) were treated with the indicated siRNAs and analyzed by flow cytometry.