Fig. 5: FBXW5 binds to LATS1 and promotes its degradation.

A, B Co-immunoprecipitation assays were carried out using HEK-293T cells after transfection with myc-FBXW5, flag-LATS1, flag-LATS2, or flag-YAP1 plasmid. C Co-immunoprecipitation assays were carried out using HEK-293T cells after transfection with myc-FBXW5ΔF-box (ΔF), ΔWD, and flag-LATS1. D After cells were treated with 20 μg/ml cycloheximide (CHX) for distinct lengths of time, western blot analysis was conducted. E Cells were treated with the proteasome inhibitor, MG132, and the protein level of LATS1 was determined using western blot analysis. F BGC-823 cells overexpressing FBXW5 were treated with MG132 for 6 h and analyzed to determine LATS1 expression. G, H In vivo protein ubiquitination assays were carried out using the GC cell lines, HGC-27 and BGC-823.