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Translation01:31

Translation

Lesson: Translation
Translation is the process of synthesizing proteins from the genetic information carried by messenger RNA (mRNA). Following transcription, it constitutes the final step in the expression of genes. This process is carried out by ribosomes, complexes of protein and specialized RNA molecules. Ribosomes, transfer RNA (tRNA), and other proteins produce a chain of amino acids—the polypeptide—as the end product of translation.
Translation Produces the Building Blocks of Life
Translation01:31

Translation

Lesson: Translation
Translation is the process of synthesizing proteins from the genetic information carried by messenger RNA (mRNA). Following transcription, it constitutes the final step in the expression of genes. This process is carried out by ribosomes, complexes of protein and specialized RNA molecules. Ribosomes, transfer RNA (tRNA), and other proteins produce a chain of amino acids—the polypeptide—as the end product of translation.
Translation Produces the Building Blocks of Life
Translation01:31

Translation

Lesson: Translation
Translation is the process of synthesizing proteins from the genetic information carried by messenger RNA (mRNA). Following transcription, it constitutes the final step in the expression of genes. This process is carried out by ribosomes, complexes of protein and specialized RNA molecules. Ribosomes, transfer RNA (tRNA), and other proteins produce a chain of amino acids—the polypeptide—as the end product of translation.
Translation Produces the Building Blocks of Life
Initiation of Translation02:33

Initiation of Translation

Initiating translation is complex because it involves multiple molecules. Initiator tRNA, ribosomal subunits, and eukaryotic initiation factors (eIFs) are all required to assemble on the initiation codon of mRNA. This process consists of several steps that are mediated by different eIFs.
First, the initiator tRNA must be selected from the pool of elongator tRNAs by eukaryotic initiation factor 2 (eIF2). The initiator tRNA (Met-tRNAi) has conserved sequence elements including modified bases at...
Translation01:31

Translation

Translation is the process of synthesizing proteins from the genetic information carried by messenger RNA (mRNA). Following transcription, it constitutes the final step in the expression of genes. This process is carried out by ribosomes, complexes of protein and specialized RNA molecules. Ribosomes, transfer RNA (tRNA), and other proteins produce a chain of amino acids—the polypeptide—as the end product of translation.
Translation Produces the Building Blocks of Life
Proteins are called the...
Translation in Prokaryotes01:29

Translation in Prokaryotes

Prokaryote translation is a complex, highly coordinated process that converts genetic information from mRNA into functional proteins. It involves three stages: initiation, elongation, and termination, each facilitated by specific molecular components.Initiation of TranslationThe process begins with the assembly of the ribosomal subunits and initiation factors on the mRNA. In bacteria, the 30S ribosomal subunit recognizes the Shine-Dalgarno sequence in the mRNA, a conserved region upstream of...

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Video Experimental Relacionado

Updated: Jun 10, 2026

Polysome Fractionation and Analysis of Mammalian Translatomes on a Genome-wide Scale
10:56

Polysome Fractionation and Analysis of Mammalian Translatomes on a Genome-wide Scale

Published on: May 17, 2014

Traducir el código de la histona.

T Jenuwein1, C D Allis

  • 1Research Institute of Molecular Pathology (IMP) at the Vienna Biocenter, Dr. Bohrgasse 7, A-1030 Vienna, Austria. jenuwein@nt.imp.univie.ac.at

Science (New York, N.Y.)
|August 11, 2001
PubMed
Resumen
Este resumen es generado por máquina.

Las modificaciones posttraducionales en las histonas crean un "código histónico", que regula la actividad génica e impacta el desarrollo celular. Este sistema epigenético influye en la mayoría de los procesos moldeados por la cromatina, afectando el destino celular y la enfermedad.

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Área de la Ciencia:

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

Sus antecedentes:

  • La cromatina sirve como la plantilla para la información genética eucariota.
  • Los amino-terminales de la histona sufren modificaciones después de la traducción.
  • Estas modificaciones regulan la accesibilidad del ADN y la expresión génica.

Objetivo del estudio:

  • Explorar el papel de las modificaciones histónicas en la regulación de los estados de la cromatina.
  • Introducir el concepto de un
  • El código histónico es el código histónico.
  • que extiende la información genética.
  • Para resaltar la importancia de este sistema de marcado epigenético en los procesos celulares.

Principales métodos:

  • Análisis de las modificaciones amino-terminales de la histona.
  • Investigación de las interacciones proteína-cromatina.
  • Examen de los estados de la cromatina (activo vs. silencioso).

Principales resultados:

  • Diferentes modificaciones histónicas crean variadas afinidades para las proteínas asociadas a la cromatina.
  • Estas interacciones impulsan las transiciones entre la cromatina activa y silenciosa.
  • Las modificaciones combinatorias de las histonas forman un complejo código regulador.

Conclusiones:

  • El "código histónico" es un mecanismo de regulación epigenético fundamental.
  • Este sistema impacta en casi todos los procesos con plantilla de cromatina.
  • Tiene profundas consecuencias para el destino celular, el desarrollo y las enfermedades.