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相关概念视频

Proteomics01:33

Proteomics

7.4K
A proteome is the entire set of proteins that a cell type produces. We can study proteomes using the knowledge of genomes because genes code for mRNAs, and the mRNAs encode proteins. Although mRNA analysis is a step in the right direction, not all mRNAs are translated into proteins.
Proteomics is the study of proteomes' function. It involves the large-scale systematic study of the proteome to denote the protein complement expressed by a genome. Scientist Mark Wilkins coined the term...
7.4K

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相关实验视频

Updated: Jul 18, 2025

Deep Proteome Profiling by Isobaric Labeling, Extensive Liquid Chromatography, Mass Spectrometry, and Software-assisted Quantification
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Deep Proteome Profiling by Isobaric Labeling, Extensive Liquid Chromatography, Mass Spectrometry, and Software-assisted Quantification

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对微型蛋白质样本进行序列和多层蛋白质组分析.

Dongying Huang1, Yeye Leng1, Xiangye Zhang2

  • 1School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China; State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing 102206, China.

Journal of proteomics
|August 24, 2023
PubMed
概括
此摘要是机器生成的。

研究人员开发了一种用于多层次蛋白质组分析的新微尺度策略,可以全面研究翻译后修饰交叉通话. 这种方法有效地从小样本中分析了总蛋白质组,无处不在蛋白质组和蛋白质组.

关键词:
在 PTM 交叉的交叉中,酸化是指酸化的方法.序列丰富方式 序列丰富在Ubiquitination中使用.

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相关实验视频

Last Updated: Jul 18, 2025

Deep Proteome Profiling by Isobaric Labeling, Extensive Liquid Chromatography, Mass Spectrometry, and Software-assisted Quantification
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Deep Proteome Profiling by Isobaric Labeling, Extensive Liquid Chromatography, Mass Spectrometry, and Software-assisted Quantification

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Digital Microfluidics for Automated Proteomic Processing
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科学领域:

  • 蛋白质组学是指蛋白质组学.
  • 生物化学 生化学
  • 分子生物学分子生物学

背景情况:

  • 像酸化和泛化这样的翻译后修饰 (PTM) 对细胞信号传递和蛋白质调节至关重要.
  • 了解不同PTM之间的交叉通话对于理解复杂的生物系统至关重要.
  • 现有的多级蛋白质组分析方法通常在技术上具有挑战性,并且需要大量的样本.

研究的目的:

  • 开发一种强大而有效的战略,用于使用微尺度起始材料进行多层次蛋白质组分析.
  • 为了实现总蛋白质组,无处不在蛋白质组和蛋白质组的序列分析.
  • 在生物样本中调查ubiquitination和酸化之间的交叉声.

主要方法:

  • 评估溶解缓冲器,以确定多层次蛋白质组分析的最佳条件.
  • 开发了一种连续丰富方法,用于连续分离ubiquitinome和phosphoproteome.
  • 定制可变窗口用于数据独立获取 (DIA) 测序,以增强识别深度.

主要成果:

  • 脱氧化缓冲剂在多层次蛋白质组分析中表现出卓越的性能.
  • 随着ubiquitinome和phosphoproteome的顺序丰富,可以保持其可复制性.
  • 从1毫克的HeLa消化剂中识别了6465种蛋白质,约20,000个GlyGly位点和约19,000个酸盐,使用三个DIA测量.
  • 在MG132治疗的HeLa细胞中观察到ubiquitination和phosphorylation之间的交叉.

结论:

  • 开发的战略使得从微观样本进行全面的多层次蛋白质组分析成为可能.
  • 这种方法为研究PTM交叉声及其生物学影响提供了有价值的工具.
  • 这些发现为未来的多层次蛋白质组研究提供了参考,特别是在有限的样本可用性的情况下.