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Cell Specific Gene Expression01:58

Cell Specific Gene Expression

Multicellular organisms contain a variety of structurally and functionally distinct cell types, but the DNA in all the cells originated from the same parent cells. The differences in the cells can be attributed to the differential gene expression. Liver cells, whose functions include detoxification of blood, production of bile to metabolize fats, and synthesis of proteins essential for metabolism, must express a specific set of genes to perform their functions. Gene expression also varies with...
Cell Specific Gene Expression01:58

Cell Specific Gene Expression

Multicellular organisms contain a variety of structurally and functionally distinct cell types, but the DNA in all the cells originated from the same parent cells. The differences in the cells can be attributed to the differential gene expression. Liver cells, whose functions include detoxification of blood, production of bile to metabolize fats, and synthesis of proteins essential for metabolism, must express a specific set of genes to perform their functions. Gene expression also varies with...
What is Gene Expression?01:42

What is Gene Expression?

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...
What is Gene Expression?01:42

What is Gene Expression?

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...
What is Gene Expression?01:36

What is Gene Expression?

A gene is a stretch of DNA that serves as the blueprint for functional RNAs and proteins. Since DNA is comprised  of nucleotides and proteins are comprised of amino acids, a mediator is required to convert the information encoded in DNA into proteins. This mediator is the messenger RNA (mRNA). mRNA copies the blueprint from DNA by a process called transcription. In eukaryotes, transcription occurs in the nucleus by complementary base-pairing with the DNA template. The mRNA is then processed and...
Regulation of Expression at Multiple Steps01:23

Regulation of Expression at Multiple Steps

The gene expression in cells is regulated at different stages: (i) transcription, (ii) RNA processing, (iii) RNA localization, and (iv) translation. Transcriptional regulation is mediated by regulatory proteins such as transcription factors, activators, or repressors—these control gene expression by initiating or inhibiting the transcription of genes. Once a precursor or pre-mRNA is produced, it undergoes post-transcriptional modification, including 5' capping, splicing, and the addition of a...

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Video Experimental Relacionado

Updated: May 17, 2026

Real-time Analysis of Transcription Factor Binding, Transcription, Translation, and Turnover to Display Global Events During Cellular Activation
12:54

Real-time Analysis of Transcription Factor Binding, Transcription, Translation, and Turnover to Display Global Events During Cellular Activation

Published on: March 7, 2018

Revisando el análisis global de la expresión génica.

Jakob Lovén1, David A Orlando, Alla A Sigova

  • 1Whitehead Institute for Biomedical Research, 9 Cambridge Center, Cambridge, MA 02142, USA.

Cell
|October 30, 2012
PubMed
Resumen
Este resumen es generado por máquina.

Los supuestos comunes en el análisis de la expresión génica pueden conducir a una mala interpretación de los datos globales de expresión génica. Este estudio aborda estas cuestiones, ofreciendo soluciones para mejorar la precisión de los datos en múltiples plataformas.

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Published on: March 7, 2018

Global Gene Expression Analysis Using a Zebrafish Oligonucleotide Microarray Platform
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Published on: August 10, 2009

Analyzing Multifactorial RNA-Seq Experiments with DiCoExpress
05:22

Analyzing Multifactorial RNA-Seq Experiments with DiCoExpress

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Área de la Ciencia:

  • La genómica es la genómica.
  • Biología Molecular Biología Molecular
  • La bioinformática es la bioinformática.

Sus antecedentes:

  • El análisis de la expresión génica es crucial para comprender los sistemas biológicos y las enfermedades.
  • Las prácticas actuales pueden incluir suposiciones erróneas.
  • La mala interpretación de los datos globales de expresión génica es una preocupación creciente.

Objetivo del estudio:

  • Identificar y discutir supuestos comunes en el análisis de la expresión génica.
  • Proponer soluciones para minimizar la interpretación errónea de los datos de expresión génica.
  • Para mejorar la fiabilidad del análisis de datos de expresión génica.

Principales métodos:

  • Revisión de las prácticas experimentales y analíticas actuales en el análisis de la expresión génica.
  • Identificación de los supuestos subyacentes.
  • Desarrollo de estrategias y soluciones correctivas.

Principales resultados:

  • Las suposiciones comunes en el análisis de la expresión génica pueden conducir a interpretaciones erróneas significativas.
  • Las prácticas analíticas y experimentales específicas son propensas a estos errores.
  • Las soluciones propuestas ofrecen un camino hacia una interpretación más precisa de los datos.

Conclusiones:

  • Abordar las suposiciones incrustadas es vital para un análisis preciso de la expresión génica.
  • La implementación de las soluciones propuestas puede mejorar la integridad de los datos.
  • Este trabajo tiene como objetivo refinar la interpretación de los datos globales de expresión génica.