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lncRNA - Long Non-coding RNAs02:39

lncRNA - Long Non-coding RNAs

In humans, more than 80% of the genome gets transcribed. However, only around 2% of the genome codes for proteins. The remaining part produces non-coding RNAs which includes ribosomal RNAs, transfer RNAs, telomerase RNAs, and regulatory RNAs, among other types. A large number of regulatory non-coding RNAs have been classified into two groups depending upon their length – small non-coding RNAs, such as microRNA, which are less than 200 nucleotides in length, and long non-coding RNA (lncRNA)...
lncRNA - Long Non-coding RNAs02:39

lncRNA - Long Non-coding RNAs

In humans, more than 80% of the genome gets transcribed. However, only around 2% of the genome codes for proteins. The remaining part produces non-coding RNAs which includes ribosomal RNAs, transfer RNAs, telomerase RNAs, and regulatory RNAs, among other types. A large number of regulatory non-coding RNAs have been classified into two groups depending upon their length – small non-coding RNAs, such as microRNA, which are less than 200 nucleotides in length, and long non-coding RNA (lncRNA)...
Types of RNA01:20

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...
Types of RNA01:23

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...
Types of RNA01:20

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.
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Types of RNA01:23

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...

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Evolución y funciones de los ARN largos no codificantes.

Chris P Ponting1, Peter L Oliver, Wolf Reik

  • 1MRC Functional Genomics Unit, University of Oxford, Department of Physiology, Anatomy and Genetics, South Parks Road, Oxford, OX1 3QX, UK. chris.ponting@dpag.ox.ac.uk

Cell
|February 26, 2009
PubMed
Resumen
Este resumen es generado por máquina.

Los ARN largos no codificantes (ARNlnc) son moléculas reguladoras cruciales, no sólo ruido transcripcional. Esta revisión explora su evolución, roles en la regulación génica y vínculos con las enfermedades.

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Área de la Ciencia:

  • Biología Molecular Biología Molecular
  • Genética La genética.
  • La genómica es la genómica.

Sus antecedentes:

  • Las moléculas de ARN realizan diversas funciones más allá de la síntesis de proteínas.
  • Los genomas eucariotas producen numerosas especies de ARN no codificantes de proteínas.
  • Los ARN largos no codificantes (ARNlnc) representan una clase significativa, pero poco estudiada, de transcripciones.

Objetivo del estudio:

  • Revisar los orígenes evolutivos de los lncRNAs.
  • Para dilucidar las funciones reguladoras de los lncRNAs en la expresión génica.
  • Examinar la participación de los lncRNA en las enfermedades humanas.

Principales métodos:

  • Revisión de la literatura y síntesis de la investigación existente sobre los lncRNAs.
  • Análisis de las trayectorias evolutivas de los genes de lncRNA.
  • Integración de datos sobre las funciones del lncRNA en la regulación transcripcional y epigenética.

Principales resultados:

  • Los lncRNAs exhiben diversos patrones evolutivos.
  • Los lncRNA son parte integral de las complejas redes reguladoras de genes.
  • La desregulación de los lncRNA está implicada en varias condiciones patológicas.

Conclusiones:

  • Los lncRNAs son funcionalmente significativos y no sólo subproductos de la transcripción.
  • La comprensión de la evolución del lncRNA proporciona información sobre sus mecanismos reguladores.
  • Los lncRNAs representan objetivos prometedores para el diagnóstico y la terapia de enfermedades.