関連する実験動画
Updated: Jul 6, 2026

14:40
Expression Analysis of Mammalian Linker-histone Subtypes
Published on: March 19, 2012
まとめ
マウスの組織には11,50012,500のメッセンジャーRNA (mRNA) が含まれており,豊富度クラスに分類されています. mRNA集団の組織特異的な差異は,豊富性と質的な変化に関連しており,多くの共通の配列が家政機能を示唆しています.
科学分野:
- 分子生物学は分子生物学である.
- ゲノミクスゲノミクスとは
- トランスクリプトミクス (Transcriptomics) とは
背景:
- メッセンジャーRNA (mRNA) 集団は,異なる組織によって異なる.
- mRNAの複雑性と豊富さを理解することは,遺伝子調節の解読に不可欠です.
研究 の 目的:
- ネズミの腎臓,脳,肝臓の組織における異なるmRNAの数を定量化するために.
- mRNA集団の多様性クラスへの編成を調査する.
- mRNA配列における組織特有の違いと共通点を探求する.
主な方法:
- mRNA-cDNAのハイブリッド化テクニック.
- 補完的なDNA (cDNA) を豊富度クラスに分割する.
- 組織間の配列共有を評価するためのクロスハイブリデーション実験.
主要な成果:
- 各組織で11,500〜12,500の異なるmRNAが特定されました.
- mRNA集団は,連続分布ではなく,3つの豊富性クラスに分類されています.
- mRNA配列の有意な割合は,組織全体,特により低い豊富性クラスで共有され,機能が保存されていることを示しています.
結論:
- 組織特異的なmRNAの差異は,豊富さと配列組成の両方によって影響されます.
- 特定されたmRNAのほとんどは,高い組織間共有により,重要な"家政"機能に関与しているようです.
- 肝臓と腎臓の豊富なおよび中頻度のmRNAには,繰り返されたDNA配列に関連する成分が含まれています.
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08:23De novo Identification of Actively Translated Open Reading Frames with Ribosome Profiling Data
Published on: February 18, 2022
関連する概念動画
Types of RNA
Overview
Three main types of RNA are involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). These RNAs perform diverse functions and can be broadly classified as protein-coding or non-coding RNA. Non-coding RNAs play important roles in the regulation of gene expression in response to developmental and environmental changes. Non-coding RNAs in prokaryotes can be manipulated to develop more effective antibacterial drugs for human or animal use.
RNA...
Three main types of RNA are involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). These RNAs perform diverse functions and can be broadly classified as protein-coding or non-coding RNA. Non-coding RNAs play important roles in the regulation of gene expression in response to developmental and environmental changes. Non-coding RNAs in prokaryotes can be manipulated to develop more effective antibacterial drugs for human or animal use.
RNA...
Bacterial RNA Polymerase
Unlike eukaryotes, bacteria use a single RNA Polymerase (RNAP) to transcribe all genes. The different subunits of bacterial RNAPhave distinct functions. The multisubunit structure of the bacterial RNAP helps the enzyme to maintain catalytic function, facilitate assembly, interact with DNA and RNA, and self-regulate its activity.
In most genes, the transcription site is a single base present upstream of the coding sequence. Though RNAP is a catalytically efficient enzyme, it does not recognize...
In most genes, the transcription site is a single base present upstream of the coding sequence. Though RNAP is a catalytically efficient enzyme, it does not recognize...
Types of RNA
Overview
Three main types of RNA are involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). These RNAs perform diverse functions and can be broadly classified as protein-coding or non-coding RNA. Non-coding RNAs play important roles in the regulation of gene expression in response to developmental and environmental changes. Non-coding RNAs in prokaryotes can be manipulated to develop more effective antibacterial drugs for human or animal use.
RNA...
Three main types of RNA are involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). These RNAs perform diverse functions and can be broadly classified as protein-coding or non-coding RNA. Non-coding RNAs play important roles in the regulation of gene expression in response to developmental and environmental changes. Non-coding RNAs in prokaryotes can be manipulated to develop more effective antibacterial drugs for human or animal use.
RNA...
Eukaryotic RNA Polymerases
RNA Polymerase (RNAP) is conserved in all animals, with bacterial, archaeal, and eukaryotic RNAPs sharing significant sequence, structural, and functional similarities. Among the three eukaryotic RNAPs, RNA Polymerase II is most similar to bacterial RNAP in terms of both structural organization and folding topologies of the enzyme subunits. However, these similarities are not reflected in their mechanism of action.
All three eukaryotic RNAPs require specific transcription factors, of which the...
All three eukaryotic RNAPs require specific transcription factors, of which the...
Types of RNA
Three main types of RNA are involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). These RNAs perform diverse functions and can be broadly classified as protein-coding or non-coding RNA. Non-coding RNAs play important roles in regulating gene expression in response to developmental and environmental changes. Non-coding RNAs in prokaryotes can be manipulated to develop more effective antibacterial drugs for human or animal use.
RNA Performs Diverse...
RNA Performs Diverse...
Types of RNA
Three main types of RNA are involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). These RNAs perform diverse functions and can be broadly classified as protein-coding or non-coding RNA. Non-coding RNAs play important roles in regulating gene expression in response to developmental and environmental changes. Non-coding RNAs in prokaryotes can be manipulated to develop more effective antibacterial drugs for human or animal use.
RNA Performs Diverse...
RNA Performs Diverse...