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相关概念视频

Genome Annotation and Assembly03:36

Genome Annotation and Assembly

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The genome refers to all of the genetic material in an organism. It can range from a few million base pairs in microbial cells to several billion base pairs in many eukaryotic organisms. Genome assembly refers to the process of taking the DNA sequencing data and putting it all back together in a correct order to create a close representation of the original genome. This is followed by the identification of functional elements on the newly assembled genome, a process called genome annotation.
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Genomics is the science of genomes: it is the study of all the genetic material of an organism. In humans, the genome consists of information carried in 23 pairs of chromosomes in the nucleus, as well as mitochondrial DNA. In genomics, both coding and non-coding DNA is sequenced and analyzed. Genomics allows a better understanding of all living things, their evolution, and their diversity. It has a myriad of uses: for example, to build phylogenetic trees, to improve productivity and...
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Eukaryotes have large genomes compared to prokaryotes. To fit their genomes into a cell, eukaryotic DNA is packaged extraordinarily tightly inside the nucleus. To achieve this, DNA is tightly wound around proteins called histones, which are packaged into nucleosomes that are joined by linker DNA and coil into chromatin fibers. Additional fibrous proteins further compact the chromatin, which is recognizable as chromosomes during certain phases of cell division.
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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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RNA sequencing, or RNA-Seq, is a high-throughput sequencing technology used to study the transcriptome of a cell. Transcriptomics helps to interpret the functional elements of a genome and identify the molecular constituents of an organism. Additionally, it also helps in understanding the development of an organism and the occurrence of diseases. 
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Updated: Jun 9, 2025

Comprehensive Workflow for the Genome-wide Identification and Expression Meta-analysis of the ATL E3 Ubiquitin Ligase Gene Family in Grapevine
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基因组注释 基因组注释

Abhishek Kumar1

  • 1Manipal Academy of Higher Education (MAHE), Manipal & Institute of Bioinformatics, Bangalore, India. abhishek@ibioinformatics.org.

Methods in molecular biology (Clifton, N.J.)
|October 22, 2024
PubMed
概括
此摘要是机器生成的。

基因组注释为生物研究提供了关键的遗传信息,利用同质检测和先进的工具. 这一过程对于表征新测序的基因组和使下游蛋白质基因组研究成为可能至关重要.

关键词:
这是一次爆炸式爆炸.这就是BLAST2GO.基因组 基因组 基因组 基因组 基因组基因组注释 基因组注释国家储备系统 (NGS)蛋白质基因组学是什么在RNA-seqqq.

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科学领域:

  • 基因组学和生物信息学
  • 分子生物学分子生物学
  • 计算生物学 计算生物学

背景情况:

  • 基因组测序项目旨在提供全面的遗传信息,包括功能基因和蛋白质注释.
  • 基因组注释在很大程度上依赖于现有基因组数据的同质检测.
  • 测序技术的进步使得基因组测序变得易于使用和高效,从而使其得到广泛采用.

研究的目的:

  • 描述基因组注释过程,从初始测序到高级表征.
  • 详述基因组注释中使用的各种计算工具和方法.
  • 强调注释特定感兴趣的基因的重要性以及手动注释的作用.

主要方法:

  • 基因组测序和数据生成.
  • 使用BLAST和BLAT2GO (OMICSBOX) 等工具进行同质性检测.
  • 使用数据库和本体学,如基因本体学 (GO) 和KEGG.
  • 采用重复识别,基因预测和RNA-seq分析的方法.
  • 专注于对特定基因家族的注释 (BGC,CAZymes,蛇形,载体,毒素).
  • 结合了家族遗传学和家族遗传学分析.

主要成果:

  • 介绍了从测序到专业表征的基因组注释的全面工作流.
  • 讨论了各种计算工具和数据库 (BLAST,OMICSBOX,PANNZER,GO,KEGG),以实现高效的注释.
  • 强调了注释感兴趣的基因的重要性,包括生物合成基因集群,CAZymes,蛇形,转运器和毒素.
  • 强调了关键基因组手动注释的必要性.
  • 遗传学和遗传学方法被整合到注释过程中.

结论:

  • 准确的基因组注释对于解释基因组数据和推动生物研究至关重要.
  • 描述的方法和工具促进了全面的基因组表征,支持蛋白质基因组研究.
  • 关键基因的专业注释和手动策划对于理解特定物种生物学至关重要.