奎尔因通过选择性向HRAS1 I-动机DNA形成促进子序列,表现出偏好的结合相互作用
Sagar Bag1, Souvik Ghosal2, Moupriya Mukherjee3
1Department of Biophysics, Molecular Biology and Bioinformatics, University of Calcutta, 92, A.P.C. Road, Kolkata 700009, India.
概括
素 (Que) 是一种黄类化合物,它特别与HRAS1的i-motif (iM) DNA结构结合. 这一发现凸显了Que作为一种潜在的抗癌剂,向瘤基因促进器区域.
科学领域:
- 分子生物学分子生物学
- 生物化学 生化学
- 药用化学 医学化学
背景情况:
- 非正规的DNA结构,如i-motifs (iM),在基因组调节中至关重要.
- iM DNA经常在瘤基因促进器区域中发现,使其成为癌症治疗的目标.
- 像黄类的小分子正在研究它们与iM DNA相互作用的能力.
研究的目的:
- 为了研究素 (Que) 和非正规的i-motif (iM) DNA结构之间的结合相互作用.
- 确定Que与特定的IMDNA序列的优先结合,包括来自瘤基因的序列.
- 评估Que作为抗癌治疗剂的潜力.
主要方法:
- 使用了光谱学策略 (例如,UV-Vis,光谱学).
- 热力学分析被用来量化结合亲和关系.
- 使用各种iM DNA序列和双重DNA进行了比较的结合研究.
主要成果:
- 奎尔西 (Que) 证明了与HRAS1i-motif (iM) DNA的优先结合相互作用.
- 与VEGF iM,BCL2 iM和标准双重DNA相比,Que对HRAS1 iM DNA的亲和力更高.
- 该研究阐明了Que与HRAS1 iM DNA相互作用的特定光谱和机械特征.
结论:
- 奎尔 (Que) 是一种有前途的天然产品抗剂,用于向HRAS1 iM DNA.
- 奎对HRAS1 iM DNA的特异 afinity 表明在癌症治疗中具有潜在的治疗应用.
- 这些发现为设计具有向抗癌性能的新药化合物提供了洞察力.
更多相关视频
相关概念视频
02:53Conservative Site-specific Recombination and Phase Variation
6.0K
Because the DNA segments are cut and reorganized in a direction-specific manner, site-specific recombination has emerged as an efficient genetic engineering technique. Flippase and Cyclization recombinases or Flp and Cre, respectively, are two members of the tyrosine recombinase family derived from bacteriophages, that are used to mediate site-specific DNA insertions, deletions, and targeted expression of proteins in mammalian cell lines.
The recognition sites for Cre recombinase called LoxP...
The recognition sites for Cre recombinase called LoxP...
6.0K
02:31Homologous Recombination
50.5K
The basic reaction of homologous recombination (HR) involves two chromatids that contain DNA sequences sharing a significant stretch of identity. One of these sequences uses a strand from another as a template to synthesize DNA in an enzyme-catalyzed reaction. The final product is a novel amalgamation of the two substrates. To ensure an accurate recombination of sequences, HR is restricted to the S and G2 phases of the cell cycle. At these stages, the DNA has been replicated already and the...
50.5K
02:02Cis-regulatory Sequences
9.9K
Cis-regulatory sequences are short fragments of non-coding DNA that are present on the same chromosomes as the genes that they regulate. These fragments serve as binding sites for transcriptional regulators, proteins that are responsible for controlling gene transcription and differential gene expression across cell types in eukaryotes. Cis-regulatory sequences can be close to the gene of interest or thousands of bases away in the DNA sequence; however, those sequences that are further away are...
9.9K