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相关概念视频

Proteomics01:33

Proteomics

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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...
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相关实验视频

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Deep Proteome Profiling by Isobaric Labeling, Extensive Liquid Chromatography, Mass Spectrometry, and Software-assisted Quantification
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分区解析蛋白质组学与深度细胞外矩阵覆盖

Maxwell C McCabe1,2, Anthony J Saviola1,2, Kirk C Hansen1,2

  • 1Department of Biochemistry and Molecular Genetics, School of Medicine, University of Colorado, Aurora, CO, USA.

Bio-protocol
|December 16, 2024
PubMed
概括
此摘要是机器生成的。

这项研究提出了一个质谱蛋白质组学管道,以全面描述细胞和细胞外矩阵 (ECM) 蛋白质. 该方法提高了在各种组织中ECM组成的表征,有助于疾病研究.

关键词:
原蛋白是一种原蛋白.细胞外矩阵是细胞外矩阵.质谱测量质谱测量质谱测量质谱测量质量测量质谱测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量一个母体组的母体组.蛋白质提取 蛋白质提取蛋白质组学 蛋白质组学

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Enrichment of Extracellular Matrix Proteins from Tissues and Digestion into Peptides for Mass Spectrometry Analysis
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科学领域:

  • 蛋白质组学是指蛋白质组学.
  • 生物化学 生物化学
  • 细胞生物学 细胞生物学

背景情况:

  • 细胞外基质 (ECM) 对组织结构,发育和疾病至关重要.
  • 准确地描述ECM成分对于理解其生物作用至关重要.
  • 现有的方法可能无法完全捕捉到ECM的多样化和不溶性组件.

研究的目的:

  • 开发和验证一个集成的管道,用于细胞和ECM蛋白质的全面蛋白质基因分析.
  • 为了使核心ECM和相关蛋白质,包括不溶性分数,能够无偏见地覆盖.
  • 建立一个可复制的方法,用于ECM丰富和量化在不同的组织类型.

主要方法:

  • 一个多步骤的协议,涉及逐步提取细胞和ECM蛋白质.
  • 酶性消化成,然后进行清洁和质谱 (MS) 分析.
  • 生物信息数据处理管道优化以ECM为中心的分析,包括LC-MS/MS.

主要成果:

  • 该管道提供了对细胞,ECM相关和核心ECM蛋白质的公正覆盖.
  • 它成功地分析了ECM分离物,这些分离物耐受于强烈的热剂,如尿素和瓜尼丁化.
  • 优化的提取缓冲器在各种组织类型和MS平台上表现出有效性.

结论:

  • 该协议使细胞外基质的系统,蛋白质组范围的映射成为可能.
  • 它提供了核心ECM和母体体相关蛋白质的改进分析,包括不溶性成分.
  • 该方法促进可重现的ECM丰富和量化,推进组织分析.