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相关概念视频

Peptide Identification Using Tandem Mass Spectrometry01:33

Peptide Identification Using Tandem Mass Spectrometry

6.4K
Tandem mass spectrometry, also known as MS/MS or MS2, is an analytical technique that employs two mass analyzers. Essentially it is a series of mass spectrometers that helps isolate a particular biomolecule and then helps study its chemical properties.
This technique helps gather information regarding the protein from which the peptide was obtained and to study the peptides’ amino acid sequence. Identifying peptides from a complex mixture is an important component of the growing field of...
6.4K
Next-generation Sequencing03:00

Next-generation Sequencing

88.8K
The first human genome sequencing project cost $2.7 billion and was declared complete in 2003, after 15 years of international cooperation and collaboration between several research teams and funding agencies. Today, with the advent of next-generation sequencing technologies, the cost and time of sequencing a human genome have dropped over 100 fold.
Next-Generation Sequencing Methods
Although all next-generation methods use different technologies, they all share a set of standard features....
88.8K

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False discovery rate estimation using candidate peptides for each spectrum.

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Target-small decoy search strategy for false discovery rate estimation.

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相关实验视频

Updated: Jul 2, 2025

2D-HELS MS Seq: A General LC-MS-Based Method for Direct and de novo Sequencing of RNA Mixtures with Different Nucleotide Modifications
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2D-HELS MS Seq: A General LC-MS-Based Method for Direct and de novo Sequencing of RNA Mixtures with Different Nucleotide Modifications

Published on: July 10, 2020

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使用变压器模型的双向de novo序测序.

Sangjeong Lee1, Hyunwoo Kim1

  • 1Center for Biomedical Computing, Korea Institute of Science and Technology Information, Daejeon, Republic of Korea.

PLoS computational biology
|February 28, 2024
PubMed
概括

诺沃B通过从两端双向预测序列来改善de novo测序. 这种深度学习方法通过更有效地利用双重质谱数据来提高蛋白质组学的准确性.

科学领域:

  • 蛋白质组学是指蛋白质组学.
  • 计算生物学 计算生物学
  • 生物信息学是一种生物信息学.

背景情况:

  • 在蛋白质组学中,新的测序对于识别序来说至关重要.
  • 最近出现了深度学习方法,用于新的测序.
  • 现有的方法通常从第一个氨基酸预测序列.

研究的目的:

  • 引入一种新的双向深度学习方法,用于新的序列测序.
  • 解决现有方法中单向预测的局限性.
  • 为了提高从双重质谱的酸序列识别的准确性.

主要方法:

  • 使用变压器模型进行 de novo 测序.
  • 实现了双向预测,从第一个和最后一个氨基酸开始.
  • 杆式的b-离子和y-离子碎片存在于双重质谱中.

主要成果:

  • 与现有方法相比,NovoB方法表现出更好的性能.
  • 在所有物种中,平均水平准确度大约增加了9.8%.
  • 在 de novo 测序中展示了双向预测的有效性.

结论:

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A Fast and Quantitative Method for Post-translational Modification and Variant Enabled Mapping of Peptides to Genomes
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A Fast and Quantitative Method for Post-translational Modification and Variant Enabled Mapping of Peptides to Genomes

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Peptide-based Identification of Functional Motifs and their Binding Partners
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Peptide-based Identification of Functional Motifs and their Binding Partners

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相关实验视频

Last Updated: Jul 2, 2025

2D-HELS MS Seq: A General LC-MS-Based Method for Direct and de novo Sequencing of RNA Mixtures with Different Nucleotide Modifications
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2D-HELS MS Seq: A General LC-MS-Based Method for Direct and de novo Sequencing of RNA Mixtures with Different Nucleotide Modifications

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A Fast and Quantitative Method for Post-translational Modification and Variant Enabled Mapping of Peptides to Genomes
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A Fast and Quantitative Method for Post-translational Modification and Variant Enabled Mapping of Peptides to Genomes

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Peptide-based Identification of Functional Motifs and their Binding Partners
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Peptide-based Identification of Functional Motifs and their Binding Partners

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  • 双向预测对于准确的新测序至关重要.
  • 诺沃B在蛋白质组学数据分析方面取得了重大进展.
  • 变压器模型有效地处理复杂的质谱数据,以改善序列识别.