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相关概念视频

Ribosome Profiling02:24

Ribosome Profiling

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Ribosome profiling or ribo-sequencing is a deep sequencing technique that produces a snapshot of active translation in a cell. It selectively sequences the mRNAs protected by ribosomes to get an insight into a cell’s translation landscape at any given point in time.
Applications of ribosome profiling
Ribosome profiling has many applications, including in vivo monitoring of translation inside a particular organ or tissue type and quantifying new protein synthesis levels.
The technique...
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DNA Microarrays02:34

DNA Microarrays

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Microarrays are high-throughput and relatively inexpensive assays that can be automated to analyze large quantities of data at a time. They are used in genome-wide studies to compare gene or protein expression under two varied conditions, such as healthy and diseased states. Microarrays consist of glass or silica slides on which probe molecules are covalently attached through surface functionalization. Most commonly, the slides are prepared through the chemisorption of silanes to silica...
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What is Gene Expression?01:42

What is Gene Expression?

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Overview
Gene expression is the process in which DNA directs the synthesis of functional products, that is, proteins. Cells can regulate gene expression at various stages. It allows organisms to generate different cell types and enables cells to adapt to internal and external factors.
Genetic Information Flows from DNA to RNA to Protein
A gene is a stretch of DNA that serves as the blueprint for functional RNAs and proteins. Since DNA is made up of nucleotides and proteins consist of amino...
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相关实验视频

Updated: Sep 10, 2025

Analyzing Gene Expression from Marine Microbial Communities using Environmental Transcriptomics
13:51

Analyzing Gene Expression from Marine Microbial Communities using Environmental Transcriptomics

Published on: February 18, 2009

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微生物组研究中的绝对基因表达估计情况

Michiel Perneel1,2,3, Harriet Alexander4, Pascal I Hablützel1,5

  • 1Flanders Marine Institute (VLIZ), 8400 Oostende, Belgium.

The ISME journal
|August 22, 2025
PubMed
概括
此摘要是机器生成的。

转录组学揭示了微生物社区的动态. 估计绝对的转录丰度,而不仅仅是相对的,更好地解释了由人口转移驱动的基因表达变化. 这种方法提高了对微生物生态系统的理解.

关键词:
绝对基因表达转录组学微生物群落的动态

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Evaluating the Impact of Hydraulic Fracturing on Streams using Microbial Molecular Signatures
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Evaluating the Impact of Hydraulic Fracturing on Streams using Microbial Molecular Signatures

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Purifying the Impure: Sequencing Metagenomes and Metatranscriptomes from Complex Animal-associated Samples
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Purifying the Impure: Sequencing Metagenomes and Metatranscriptomes from Complex Animal-associated Samples

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相关实验视频

Last Updated: Sep 10, 2025

Analyzing Gene Expression from Marine Microbial Communities using Environmental Transcriptomics
13:51

Analyzing Gene Expression from Marine Microbial Communities using Environmental Transcriptomics

Published on: February 18, 2009

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Evaluating the Impact of Hydraulic Fracturing on Streams using Microbial Molecular Signatures
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Evaluating the Impact of Hydraulic Fracturing on Streams using Microbial Molecular Signatures

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Purifying the Impure: Sequencing Metagenomes and Metatranscriptomes from Complex Animal-associated Samples
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Purifying the Impure: Sequencing Metagenomes and Metatranscriptomes from Complex Animal-associated Samples

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科学领域:

  • 微生物生态学
  • 系统生物学
  • 基因组学

背景情况:

  • 在实地研究微生物社区的功能动态方面,转录组学至关重要.
  • 基因表达的变化受到个体细胞反应和群体动态的影响.
  • 目前的方法通常依赖于相对表达量.

研究的目的:

  • 倡导在元转录学中估计绝对的转录丰度.
  • 证明绝对丰度如何改善对基因表达的影响.
  • 突出相对表达措施的局限性.

主要方法:

  • 使用基于视角的方法.
  • 分析北海微核生物浮游生物的案例研究.
  • 比较相对和绝对的成绩单丰度估计.

主要成果:

  • 绝对转录丰度提供了更全面的基因表达变化.
  • 人口动态显著影响整个社区的基因表达模式.
  • 这项研究说明了绝对量化在生态环境中的实用性.

结论:

  • 整合绝对转录数量测量对于准确的转录学解释至关重要.
  • 这种方法可以更深入地了解微生物社区对环境变化的功能反应.
  • 未来的元转录学研究应考虑绝对定量化,以获得可靠的生态结论.