申请人:St. Anna Kinderkrebsforschung
公开号:EP3502130A1
公开(公告)日:2019-06-26
Disclosed is a ligand regulated protein-protein interaction system based on a lipocalin-fold molecule comprising:
(a) a lipocalin-fold molecule
(b) a lipocalin-fold ligand with a low molecular weight of 1500 Da or below, and
(c) a lipocalin-fold binding interaction partner,
wherein the lipocalin-fold molecule can bind to the lipocalin-fold ligand; and
wherein the lipocalin-fold molecule bound to the lipocalin-fold ligand binds to the lipocalin-fold binding interaction partner with an affinity which is at least 10-fold higher than the affinity of the lipocalin-fold molecule not bound to the lipocalin-fold ligand,
and wherein the lipocalin-fold binding interaction partner is not a naturally occurring protein which has an affinity of <10 µM to any naturally occurring lipocalin-fold molecule in the presence of any lipocalin-fold ligand.
所公开的是一种基于脂钙蛋白折叠分子的配体调节蛋白质-蛋白质相互作用系统,该系统包括
(a) 脂钙蛋白折叠分子
(b) 低分子量为 1500 Da 或以下的脂钙蛋白-折叠配体,以及
(c) 脂钙蛋白-折叠结合相互作用伙伴、
其中脂钙素折叠分子可与脂钙素折叠配体结合;以及
其中与脂钙蛋白配体结合的脂钙蛋白-折叠分子与脂钙蛋白-折叠结合相互作用伙伴结合的亲和力比未与脂钙蛋白-折叠配体结合的脂钙蛋白-折叠分子的亲和力至少高 10 倍、
其中脂钙蛋白-折叠结合相互作用伙伴不是天然存在的蛋白质,它在任何脂钙蛋白-折叠配体存在下对任何天然存在的脂钙蛋白-折叠分子的亲和力小于10 µM。