The NxI peptide motif in the Wnt pathway inhibitor Dickkopf-1 (DKK1) that is important for binding to the E1 propeller domain of Wnt coreceptor LRP6 thereby inhibiting LRP6 interaction with Wnt
The NxI peptide motif in the Wnt pathway inhibitor Dickkopf-2 (DKK2) that is important for binding to the E1 propeller domain of Wnt coreceptor LRP6 thereby inhibiting LRP6 interaction with Wnt
The NxI peptide motif in the Wnt pathway inhibitor Sclerostin (SOST) that is important for binding to the E1 propeller domain of Wnt coreceptor LRP6 and for inhibitory function