光増強RNAアプタマーの直接選択
Michael Gotrik1,2, Gurpreet Sekhon2, Saumya Saurabh3
1Materials Department , University of California - Santa Barbara , Santa Barbara , California 93108 , United States.
Journal of the American Chemical Society
|March 6, 2018
まとめ
この研究では,RNAイメージングのための光性を高めるRNAアプタマーを発見するための新しい方法が紹介されています. この技術は,生物学的検出を改善するために,多様な放射波長を持つ新しいアプタマーを効率的に生成します.
科学分野:
- 分子生物学
- 生物化学
- バイオテクノロジー
背景:
- RNAアプタマーは,光による選択的なRNAイメージングに不可欠です.
- 従来の発見方法は,親和性と光性の間の相関が悪いため,光性を高めるアプタマーを特定するのに苦労します.
- 現存する光増強アプタマーは限られており,広範な応用が困難である.
研究 の 目的:
- 光増強RNAアプタマーの発見のための効率的な方法を開発する.
- 光応用における従来のアプタマー発見の限界を克服する.
- 調節可能な光特性を持つ新しいアプタマーを生成する.
主な方法:
- DNAライブラリを遺伝子結合RNAアプタマー粒子 (GRAP) に変換する.
- 光活性化細胞分類 (FACS) を使用したGRAPの高通量スクリーニング.
- 光増強特性に直接基づいた選択
主要な成果:
- 光増強RNAアプタマーの生成に成功した.
- 様々な波長を持つアプタマーを生成する能力が実証されている.
- GRAPシステムはRNA配列を 効率的にコードするDNAとリンクします
結論:
- GRAP方法は,機能的な光増強アプタマーの効率的な発見を可能にします.
- このアプローチはRNA画像と診断のためのツールキットを拡張します.
- この方法により,特異なスペクトル特性を有するアプタマーを生成できます.
関連する概念動画
RNA Stability
35.8K
Intact DNA strands can be found in fossils, while scientists sometimes struggle to keep RNA intact under laboratory conditions. The structural variations between RNA and DNA underlie the differences in their stability and longevity. Because DNA is double-stranded, it is inherently more stable. The single-stranded structure of RNA is less stable but also more flexible and can form weak internal bonds. Additionally, most RNAs in the cell are relatively short, while DNA can be up to 250 million...
35.8K
RNA Structure
79.2K
Overview
The basic structure of RNA consists of a five-carbon sugar and one of four nitrogenous bases. Although most RNA is single-stranded, it can form complex secondary and tertiary structures. Such structures play essential roles in the regulation of transcription and translation.
Different Types of RNA Have the Same Basic Structure
There are three main types of ribonucleic acid (RNA): messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). All three RNA types consist of a...
The basic structure of RNA consists of a five-carbon sugar and one of four nitrogenous bases. Although most RNA is single-stranded, it can form complex secondary and tertiary structures. Such structures play essential roles in the regulation of transcription and translation.
Different Types of RNA Have the Same Basic Structure
There are three main types of ribonucleic acid (RNA): messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). All three RNA types consist of a...
79.2K
Alternative RNA Splicing
25.3K
Alternative RNA splicing is the regulated splicing of exons and introns to produce different mature mRNAs from a single pre-mRNA. Unlike in constitutive splicing where a single gene produces a single type of mRNA, alternative splicing allows an organism to produce multiple proteins from a single gene and plays an important role in protein diversity.
There are five types of alternative RNA splicing that vary in the ways the pre-mRNA segments are removed or retained in the mature mRNA. The first...
There are five types of alternative RNA splicing that vary in the ways the pre-mRNA segments are removed or retained in the mature mRNA. The first...
25.3K
Types of RNA
73.0K
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...
73.0K
RNA Polymerase II Accessory Proteins
11.1K
Proteins that regulate transcription can do so either via direct contact with RNA Polymerase or through indirect interactions facilitated by adaptors, mediators, histone-modifying proteins, and nucleosome remodelers. Direct interactions to activate transcription is seen in bacteria as well as in some eukaryotic genes. In these cases, upstream activation sequences are adjacent to the promoters, and the activator proteins interact directly with the transcriptional machinery. For example, in...
11.1K
RNA Interference
28.2K
RNA interference (RNAi) is a process in which a small non-coding RNA molecule blocks the post-transcriptional expression of a gene by binding to its messenger RNA (mRNA) and preventing the protein from being translated.
This process occurs naturally in cells, often through the activity of genomically-encoded microRNAs. Researchers can take advantage of this mechanism by introducing synthetic RNAs to deactivate specific genes for research or therapeutic purposes. For example, RNAi could be used...
This process occurs naturally in cells, often through the activity of genomically-encoded microRNAs. Researchers can take advantage of this mechanism by introducing synthetic RNAs to deactivate specific genes for research or therapeutic purposes. For example, RNAi could be used...
28.2K


