Shi X, Hong T, Walter KL, Ewalt M, Michishita E, Hung T, Carney D, Pe?a P, Lan F, Kaadige MR, Lacoste N, Cayrou C, Davrazou F, Saha A, Cairns BR, Ayer DE, Kutateladze TG, Shi Y, C?t? J, Chua KF, Gozani O. ING2 PHD domain links histone H3 lysine 4 methylation to active gene repression. Nature. 2006 Jul 06; 442(7098):96-9.