选择性的细胞渗透性酪蛋白激酶2(CK2)抑制剂;Selective, cell-permeable casein kinase-2 (CK2) inhibitor;TBB(NSC 231634)是ATP/GTP竞争性CK2抑制剂,对鼠肝和人重组CK2的IC50分别为0.9和1.6 μM。;TBB(NSC 231634) is a highly selective, ATP/GTP-competitive inhibitor of casein kinase-2 (CK2)with IC50s of 0.9 and 1.6 μM for rat liver and human recombinant CK2 respectively).A highly selective CK2α, Dyrk1A, and NS3 viral helicase inhibitor.