宁波海洋中心, 自然资源部, 浙江宁波 315175
| 摘 要: | 脱氧核糖核酸(DNA)是重要的生命物质之一,是生物体遗传信息的载体,在医药研究中,靶向分子与DNA相互的机理研究,对于阐述一些抗肿瘤、抗病毒药物及致癌物的作用具有重要意义,可以进一步指导人工核酸的合成、DNA高级结构以及新型药物的设计合成。本文采用紫外光谱(UV)和荧光光谱(FS)方法研究了小分子药物(AP)与鲱鱼精子DNA的作用机制,确定了药物与DNA在单链与双链下的相互作用方式,经实验研究表明:AP与DNA的结合常数约为105 mol-1.L,小分子药物与DNA可能以沟槽式相结合。通过对AP该小分子药物与DNA的相互作用方式进行研究,也从分子水平对与DNA的相互作用方式及其潜在致DNA损伤和遗传的机制进行了探究提供了新思路。 |
| 关 键 词: | 紫外光谱; 荧光光谱; 小分子药物; 鲱鱼精子DNA; 作用方式 |
| DOI: | 10.57237/j.life.2023.03.003 |
Ningbo Oceanographic Center, Ministry of Natural Resources, Ningbo 315175, China
| Abstract: | Deoxyribonucleic acid (DNA) is one of the important living substances and a carrier of genetic information in organisms. In medical research, the study of the mechanism of the interaction between targeted molecules and DNA is of great significance for elucidating the effects of some anti-tumor, antiviral drugs, and carcinogens. It can further guide the synthesis of artificial nucleic acids, advanced DNA structures, and the design and synthesis of new drugs. UV and fluorescence spectroscopic methods to study the mechanism of action of the small molecule drugs with herring sperm DNA. Determine the interaction of drugs and DNA single-stranded and double-stranded way. The interaction between AP and DNA may be realized via groove combined. The thermodynamic formulation constant (K) was ca. 105 mol-1.L. By studying the interaction between AP, a small molecule drug, and DNA, a new approach has been provided to explore the potential mechanisms of DNA damage and inheritance at the molecular level. |
| Keywords: | UV; FS; AP; Herring Sperm DNA; Interaction Mode |
| 1. | 自然资源部东海局青年科技基金项目 (202209) |
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