To identify other potential targets, we performed mass spectrometry based quantitative phosphoproteomics analysis in Wnk1f/− leukaemia cells treated with 4-hydroxytamoxifen (OHT) for 48 h to knockout Wnk1, or with Compound 12 for 3 h to inhibit WNK1 (Fig. 5a). Here, WNK1 is linked to leukemia.