STK11 and cancer: Our screen for differentially expressed genes also identified Stk11 (also known as Lkb1; Figure 2B) a kinase well studied in the contexts of cancer, cell growth and development, but not previously studied in the contexts of learning and neuronal plasticity (Bardeesy et al., 2002; Alessi et al., 2006; Barnes et al., 2007; Gurumurthy et al., 2010; Courchet et al., 2013).