Inhibition of pyrimidine and purine nucleoside phosphorylases by a 3,5-dichlorobenzoyl-substituted 2-deoxy-d-ribose-1-phosphate derivative
作者:Johan Vande Voorde、Maurizio Quintiliani、Christopher McGuigan、Sandra Liekens、Jan Balzarini
DOI:10.1016/j.bcp.2012.02.005
日期:2012.5
5-dichlorobenzoyl-substituted 2-deoxy-D-ribose-1-phosphate derivative, designated Cf2891, was found to inhibit a variety of pyrimidine and purine nucleoside phosphorylases (NPs) with preference for uridine- and inosine-hydrolyzing enzymes [uridine phosphorylase (UP; EC 2.4.2.3), pyrimidine nucleoside phosphorylase (PyNP; EC 2.4.2.2) and purine nucleoside phosphorylase (PNP; EC 2.4.2.1)]. Kinetic analyses revealed
发现3,5-二氯苯甲酰基取代的2-脱氧-D-核糖-1-磷酸衍生物Cf2891可抑制多种嘧啶和嘌呤核苷磷酸化酶(NPs),偏爱尿苷和肌苷水解酶[尿苷磷酸化酶(UP; EC 2.4.2.3),嘧啶核苷磷酸化酶(PyNP; EC 2.4.2.2)和嘌呤核苷磷酸化酶(PNP; EC 2.4.2.1)]。动力学分析表明,Cf2891与无机磷酸盐(P(i))竞争与NP的结合,并且根据酶的性质,就核苷结合位点而言起竞争性或非竞争性抑制剂的作用。而且,该化合物防止了用于治疗病毒感染和癌症的嘧啶类似物的分解。