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相关概念视频

RNA Structure01:23

RNA Structure

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No description available
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RNA Structure01:23

RNA Structure

81.3K
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...
81.3K
RNA Structure01:19

RNA Structure

8.3K
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...
8.3K
Nucleic Acid Structure01:25

Nucleic Acid Structure

10.3K
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...
10.3K
RNA Stability01:53

RNA Stability

36.3K
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...
36.3K
RNA Stability01:53

RNA Stability

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No description available
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相关实验视频

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Comparative RNA Structure Analysis of Nascent and Mature Transcripts in Saccharomyces cerevisiae
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Comparative RNA Structure Analysis of Nascent and Mature Transcripts in Saccharomyces cerevisiae

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基于模板的RNA结构预测通过盲目代码竞赛进行了先进的预测.

Youhan Lee, Shujun He, Toshiyuki Oda

    bioRxiv : the preprint server for biology
    |January 9, 2026
    PubMed
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    此摘要是机器生成的。

    关于RNA3D结构预测的Kaggle竞赛揭示了使用3D模板而不是深度学习的顶级策略. 整合这种方法改善了RNA结构预测的准确性.

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    Probing RNA Structure with Dimethyl Sulfate Mutational Profiling with Sequencing In Vitro and in Cells
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    RNA Secondary Structure Prediction Using High-throughput SHAPE
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    相关实验视频

    Last Updated: Mar 31, 2026

    Comparative RNA Structure Analysis of Nascent and Mature Transcripts in Saccharomyces cerevisiae
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    Comparative RNA Structure Analysis of Nascent and Mature Transcripts in Saccharomyces cerevisiae

    Published on: February 27, 2026

    338
    Probing RNA Structure with Dimethyl Sulfate Mutational Profiling with Sequencing In Vitro and in Cells
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    RNA Secondary Structure Prediction Using High-throughput SHAPE
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    RNA Secondary Structure Prediction Using High-throughput SHAPE

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    科学领域:

    • 计算生物学 计算生物学
    • 结构生物学 结构生物学
    • 生物信息学是一种生物信息学.

    背景情况:

    • 从序列中预测RNA的3D结构是一个重大挑战.
    • 现有的方法经常在准确性和可扩展性方面扎.

    研究的目的:

    • 评估RNA3D结构预测的新方法.
    • 从一个大规模的计算挑战中确定有效的策略.

    主要方法:

    • 一场Kaggle竞赛,涉及1700多个团队和43个新的RNA结构.
    • 开发和整合高性能算法,包括模板建模管道.
    • 创建一个统一的模型 (RNAPro),结合成功的策略.

    主要成果:

    • 顶级算法实现的准确性与领先的结构预测努力相美.
    • 一个基于模板的建模管道,令人惊的是没有深度学习,成为了顶级策略.
    • 综合RNAPro模型在同一数据集上表现优于单个竞争模型.

    结论:

    • 基于模板的建模对于RNA结构预测越来越重要.
    • 大规模的竞赛可以推动计算生物学的重大进步.
    • 结合多样化的策略可以导致优越的预测模型.