Carbohydrate-conjugate heterobimetallic complexes: synthesis, DNA binding studies, artificial nuclease activity and in vitro cytotoxicity
作者:Sartaj Tabassum、Rais Ahmad Khan、Farukh Arjmand、Mubashira Aziz、Aarti S. Juvekar、Surekha M. Zingde
DOI:10.1016/j.carres.2011.10.010
日期:2011.12
heterobimetallic complexes [C(32)H(62)N(10)O(8)NiSn(2)Cl(4)]Cl(2)(1) and [C(32)H(62)N(10)O(8)CuSn(2)Cl(4)]Cl(2) (2) were synthesized and characterized by spectroscopic (IR, (1)H, (13)C, and (119)Sn NMR, EPR, UV-vis, ESI-MS) and analytical methods. The interaction studies of 2 with CT DNA were studied by using various biophysical techniques, which showed high binding affinity of 2 toward CT DNA. The
新的碳水化合物共轭杂双金属配合物[C(32)H(62)N(10)O(8)NiSn(2)Cl(4)] Cl(2)(1)和[C(32)H(62)N (10)O(8)CuSn(2)Cl(4)] Cl(2)的合成和表征用光谱法(IR,(1)H,(13)C和(119)Sn NMR,EPR ,UV-vis,ESI-MS)和分析方法。通过使用各种生物物理技术研究了2与CT DNA的相互作用,结果表明2对CT DNA具有很高的结合亲和力。相互作用的程度进一步由2与核苷酸的相互作用来证实。通过吸收滴定测定5'-AMP,5'-CMP,5'-GMP和5'-TMP。(1)H,(31)P,(119)Sn NMR光谱进一步验证了2与5'-GMP的相互作用模式。用超螺旋pBR322 DNA观察到的电泳图谱显示,氧化途径后的核酸酶活性非常好。在标准凹槽结合剂存在下,当2与pBR322 DNA相互作用时,观察到2对主凹槽的