Structural insights into inhibition of the bivalent menin-MLL interaction by small molecules in leukemia was written by Shi, Aibin;Murai, Marcelo J.;He, Shihan;Lund, George;Hartley, Thomas;Purohit, Trupta;Reddy, Gireesh;Chruszcz, Maksymilian;Grembecka, Jolanta;Cierpicki, Tomasz. And the article was included in Blood in 2012.Recommanded Product: 1271738-62-5 This article mentions the following:
Menin functions as a critical oncogenic cofactor of mixed lineage leukemia (MLL) fusion proteins in the development of acute leukemias, and inhibition of the menin interaction with MLL fusion proteins represents a very promising strategy to reverse their oncogenic activity. MLL interacts with menin in a bivalent mode involving 2 N-terminal fragments of MLL. In the present study, we reveal the first high-resolution crystal structure of human menin in complex with a small-mol. inhibitor of the menin-MLL interaction, MI-2. The structure shows that the compound binds to the MLL pocket in menin and mimics the key interactions of MLL with menin. Based on the menin-MI-2 structure, we developed MI-2-2, a compound that binds to menin with low nanomolar affinity (Kd = 22nM) and very effectively disrupts the bivalent protein-protein interaction between menin and MLL. MI-2-2 demonstrated specific and very pronounced activity in MLL leukemia cells, including inhibition of cell proliferation, down-regulation of Hoxa9 expression, and differentiation. Our results provide the rational and essential structural basis to design next generation of inhibitors for effective targeting of the menin-MLL interaction in leukemia and demonstrate a proof of concept that inhibition of complex multivalent protein-protein interactions can be achieved by a small-mol. inhibitor. In the experiment, the researchers used many compounds, for example, 4-(4-(5,5-Dimethyl-4,5-dihydrothiazol-2-yl)piperazin-1-yl)-6-propylthieno[2,3-d]pyrimidine (cas: 1271738-62-5Recommanded Product: 1271738-62-5).
4-(4-(5,5-Dimethyl-4,5-dihydrothiazol-2-yl)piperazin-1-yl)-6-propylthieno[2,3-d]pyrimidine (cas: 1271738-62-5) belongs to piperazine derivatives. Simple N-substituted piperazines have been found in many drug molecules. Outside the body, piperazine has a remarkable power to dissolve uric acid and producing a soluble urate, but in clinical experience it has not proved equally successful. Recommanded Product: 1271738-62-5
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Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics