Diamine and Triamine Analogs and Derivatives as Inhibitors of Deoxyhypusine Synthase: Synthesis and Biological Activity
作者:Young Bok Lee、Myung Hee Park、J. E. Folk
DOI:10.1021/jm00016a008
日期:1995.8
of this enzyme. The findings indicate that the long chain triamines 2a and 2b and their guanyl derivatives 3a, 3b, 4a, and 4b exert inhibition by binding to enzyme through only a portion of their structures at any one time. The inhibition exhibited by N-ethyl-1,7-diaminoheptane 20 and its guanyl derivative 21 supports this notion and is evidence for participation of the secondary amino group in binding
在真核起始因子5A(eIF-5A)中,脱氧酪氨酸合酶催化翻译后形成氨基酸酪氨酸[N epsilon-(4-氨基-2-羟基丁基)赖氨酸]的起始步骤。据信eIF-5A及其乙酰尿素修饰对细胞生长至关重要。合成了许多与二胺和三胺有关的化合物,并测试了该酶的抑制剂。该发现表明,长链三胺2a和2b及其鸟苷衍生物3a,3b,4a和4b通过在任何时候仅通过其结构的一部分与酶结合而发挥抑制作用。N-乙基-1,7-二氨基庚烷20及其鸟苷衍生物21表现出的抑制作用支持了这一观点,并且是仲氨基参与与酶结合的证据。有初步证据表明,mid基和异硫脲鎓基团也可以作为与酶结合的基本中心。在此测试的化合物中,很少有一种能与1-胍基-7-氨基庚烷(GC7)(最有效的脱氧嘧啶合酶抑制剂)相媲美,在抑制中国仓鼠卵巢细胞中的酶方面,几乎没有一种化合物能与GC7媲美。因此,与GC7的抗增殖作用不同,GC7的抗增殖作用有证据证明是干扰