nsc305831

Furamidine is also a selective and cell-permeable protein arginine methyltransferase 1 (PRMT1) inhibitor with an IC50 of 9.4 μM. Furamidine is selective for PRMT1 over PRMT5, PRMT6, and PRMT4 (CARM1) (IC50s of 166 μM, 283 μM, and >400 μM, respectively). Furamidine (DB75) is abisbenzamidine derivative and an antiparasite agent. Furamidine is a potent, reversible and competitive tyrosyl-DNA phosphodiesterase 1 (TDP-1) inhibitor. Inhibition of TDP-1 by Furamidine is effective both with single- and double-stranded DNA substrates but is slightly stronger with the duplex DNA.

Furamidine dihydrochloride (DB75 dihydrochloride)是一种选择性的蛋白精氨酸甲基转移酶1（PRMT1）小分子抑制剂，可优先结合DNA小沟中的AT碱基对序列。Furamidine dihydrochloride主要通过与蛋白质底物竞争的方式靶向PRMT1酶活性位点（对辅因子为非竞争性抑制），在不同遗传背景的白血病细胞系中阻断细胞增殖。