A-C Co‐immunoprecipitation (co‐IP) of wild‐type (WT) or C‐terminal deletion mutants of HA‐PIPKIγi5 with SNX5 (A) or LAPTM4B (B and C) in HEK293 cells cotransfected with indicated proteins. Δ675 indicates a deletion from amino acid 675 to the C‐terminus. 