関連する実験動画

Updated: Mar 7, 2026

A G-quadruplex DNA-affinity Approach for Purification of Enzymatically Active G4 Resolvase1
11:25

A G-quadruplex DNA-affinity Approach for Purification of Enzymatically Active G4 Resolvase1

Published on: March 18, 2017

10.1K

珍しいトポロジカルRNAアーキテクチャで,A,G,Uテトラドを含む8鎖の螺旋断片

Chao-Da Xiao1, Takumi Ishizuka1, Xiao-Qing Zhu1

  • 1Division of Chemistry, Department of Medical Sciences, Faculty of Medicine, University of Miyazaki , 5200 Kihara, Kiyotake, Miyazaki 889-1692, Japan.

Journal of the American Chemical Society
|February 9, 2017
PubMed
まとめ

ヒトのテロメアRNAは 新しく高度に安定したG四重複構造を形成する. G,U,A テトラド を 含む この 不 尋常 な 構造 は,テロメア の RNA に つい て 新しい 洞察 を 与え て い ます

さらに関連する動画

Estimation of Telomeric Repeat-containing RNA from DNA/RNA Hybrid Complexes11:24

Estimation of Telomeric Repeat-containing RNA from DNA/RNA Hybrid Complexes

Published on: December 5, 2025

285
Self-assembly of Complex Two-dimensional Shapes from Single-stranded DNA Tiles10:23

Self-assembly of Complex Two-dimensional Shapes from Single-stranded DNA Tiles

Published on: May 8, 2015

12.2K

関連する概念動画

RNA Structure01:19

RNA Structure

The basic structure of RNA consists of a string of ribonucleotides attached by phosphodiester bonds. 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) involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). All three...
8.0K
RNA Structure01:23

RNA Structure

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...
79.8K
Nucleic Acid Structure01:25

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...
9.8K
Transfer RNA Synthesis02:36

Transfer RNA Synthesis

One of the unique features of tRNA is the presence of modified bases. In some tRNAs, modified bases account for nearly 20% of the total bases in the molecule. Altogether, these unusual bases protect the tRNA from enzymatic degradation by RNases.
Each of these chemical modifications is carried by a specific enzyme, post-transcription. All of these enzymes have unique base and site-specificity. Methylation, the most common chemical modification, is carried by at least nine different enzymes, with...
13.6K
Transfer RNA Synthesis02:35

Transfer RNA Synthesis

3.9K
RNA Stability01:53

RNA Stability

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...
36.0K