Despite greatly increased numbers of effector/memory T cells in Foxp3CreLkb1f/f mice (Supplementary Fig. 1d), the absolute numbers of Treg cells were only comparable with those in wild-type mice (Supplementary Fig. 1g), suggesting that Lkb1-deficient Treg cells fail to accumulate concomitantly with effector/memory T cells in Foxp3CreLkb1f/f mice at later ages that might contribute to the autoimmunity in Foxp3CreLkb1f/f mice. Here, STK11 is linked to Autoimmunity.