有机基质-RNA结合物的有效制备通过体外转录
Roberto Fiammengo1, Kamil Musílek, Andres Jäschke
1Institute of Pharmacy and Molecular Biotechnology, University of Heidelberg, Im Neuenheimer Feld 364, 69120 Heidelberg, Germany.
Journal of the American Chemical Society
|June 23, 2005
概括
研究人员开发了用于RNA合成的新型瓜诺辛单酸衍生物. 更多的疏水衍生物在使用T7RNA聚合酶的RNA链延长过程中显示出更高的酶内置效率.
科学领域:
- 生物化学和分子生物学
- 有机合成和药用化学
背景情况:
- 核三酸盐的化学修饰对于制造功能性核酸至关重要.
- 将改性核酸纳入RNA可以为各种应用引入新的功能.
研究的目的:
- 开发一种简洁的合成路径,用于新型瓜诺辛单酸衍生物.
- 通过T7RNA聚合酶评估这些衍生物在RNA中的酶性结合.
- 为了研究衍生性疏水性对RNA聚合酶活性的影响.
主要方法:
- 四个瓜诺辛单酸衍生物的融合合成与一个脱乙烯糖醇间隔剂.
- 多种有机基质的附着:甲乙烯,甲,甲和初级氨基组.
- 用T7RNA聚合酶将衍生物酶体纳入25-merRNA转录中.
主要成果:
- 所有四种合成的瓜诺辛单酸衍生物都成功地被纳入RNA的5'-末端.
- 对于任何衍生品,没有观察到对RNA链延长的显著抑制.
- 整合效率与疏水性呈正相关性:甲乙烯 (90-95%),甲 (90-95%),甲 (68%) 和氨基组 (49%).
结论:
- 开发的合成策略为功能化瓜诺辛单酸衍生物提供了有效的访问.
- T7RNA聚合酶有效地将这些修改后的核酸结合起来,而不会影响链的延长.
- 疏水性是影响改性瓜诺辛单酸衍生物酶体内化效率的关键因素.
相关概念视频
Transcription
Overview
Transcription is the process of synthesizing RNA from a DNA sequence by RNA polymerase. It is the first step in producing a protein from a gene sequence. Additionally, many other proteins and regulatory sequences are involved in the proper synthesis of messenger RNA (mRNA). Regulation of transcription is responsible for the differentiation of all the different types of cells and often for the proper cellular response to environmental signals.
Transcription Can Produce Different Kinds...
Transcription is the process of synthesizing RNA from a DNA sequence by RNA polymerase. It is the first step in producing a protein from a gene sequence. Additionally, many other proteins and regulatory sequences are involved in the proper synthesis of messenger RNA (mRNA). Regulation of transcription is responsible for the differentiation of all the different types of cells and often for the proper cellular response to environmental signals.
Transcription Can Produce Different Kinds...
Types of RNA
Overview
Three main types of RNA are involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). These RNAs perform diverse functions and can be broadly classified as protein-coding or non-coding RNA. Non-coding RNAs play important roles in the regulation of gene expression in response to developmental and environmental changes. Non-coding RNAs in prokaryotes can be manipulated to develop more effective antibacterial drugs for human or animal use.
RNA...
Three main types of RNA are involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). These RNAs perform diverse functions and can be broadly classified as protein-coding or non-coding RNA. Non-coding RNAs play important roles in the regulation of gene expression in response to developmental and environmental changes. Non-coding RNAs in prokaryotes can be manipulated to develop more effective antibacterial drugs for human or animal use.
RNA...
Complementary DNA
Overview
Types of RNA
Three main types of RNA are involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). These RNAs perform diverse functions and can be broadly classified as protein-coding or non-coding RNA. Non-coding RNAs play important roles in regulating gene expression in response to developmental and environmental changes. Non-coding RNAs in prokaryotes can be manipulated to develop more effective antibacterial drugs for human or animal use.
RNA Performs Diverse...
RNA Performs Diverse...
Transcription
Transcription is the synthesis of RNA from a DNA sequence by RNA polymerase. It is the first step in producing a protein from a gene sequence. Additionally, many other proteins and regulatory sequences are involved in correctly synthesizing messenger RNA (mRNA). Transcriptional regulation is responsible for the differentiation of different types of cells and often for the proper cellular response to environmental signals.
Transcription Can Produce Different Kinds of RNA Molecules
In eukaryotes,...
Transcription Can Produce Different Kinds of RNA Molecules
In eukaryotes,...
Nucleic Acid Structure
The pentose sugar in DNA is deoxyribose, while in RNA the pentose sugar is ribose. The difference between the sugars is the presence of the hydroxyl group on the ribose's second carbon and a hydrogen on the deoxyribose's second carbon. The phosphate residue attaches to the hydroxyl group of the 5′ carbon of one sugar and the hydroxyl group of the 3′ carbon of the sugar of the next nucleotide, which forms a 5′ to 3′ phosphodiester linkage.
DNA Structure
DNA has a double-helix structure. The...
DNA Structure
DNA has a double-helix structure. The...


