JoVE - Journal of Visualized Experiments
JoVE Visualize
Contact Us
Esta página ha sido traducida por una máquina. Otras páginas pueden seguir apareciendo en inglés. View in English

Cromosomas sintéticos, genomas, virus y células

  • 0The J. Craig Venter Institute, La Jolla, CA, and Rockville, MD, USA.
Cell +

|

22 de julio de 2022

|

22 de julio de 2022

Ver abstracta en PubMed

Resumen

Este resumen es generado por máquina.

La genómica sintética construye virus, bacterias y células con genomas sintéticos. Este campo revoluciona la medicina, la industria y la agricultura a través de los avances en la síntesis del ADN y la ingeniería celular.

Área De La Ciencia

  • Biología sintética
  • La genómica
  • Biología molecular

Sus Antecedentes

  • La genómica sintética implica la creación de genomas sintéticos para virus, bacterias y células eucariotas.
  • Abarca la síntesis del genoma y el "arranque" de ácidos nucleicos sintéticos en organismos funcionales.

Objetivo Del Estudio

  • Revisar los procesos fundamentales y los logros significativos en la genómica sintética.
  • Destacar el impacto transformador de la genómica sintética en varios sectores científicos e industriales.

Principales Métodos

  • Síntesis de genomas o cromosomas virales, bacterianos y eucariotas completos.
  • In vitro o in vivo, el "arranque" de ácidos nucleicos sintéticos para generar organismos viables.

Principales Resultados

  • El trabajo pionero condujo a la construcción de virus sintéticos, revolucionando la genética viral inversa y el desarrollo de vacunas.
  • La creación de la primera célula bacteriana sintética permitió una construcción celular mínima y cepas de *E. coli* diseñadas con funcionalidades mejoradas.
  • Los avances incluyen genomas sintéticos de levadura y nuevos enfoques para cromosomas artificiales en plantas y animales.

Conclusiones

  • La genómica sintética ha demostrado un progreso significativo, desde los sistemas virales y bacterianos hasta las células eucariotas complejas.
  • Los avances emergentes en la síntesis del ADN prometen abrir oportunidades sin precedentes en la medicina, la industria, la agricultura y la investigación fundamental.

Videos de Conceptos Relacionados

Synthetic Biology 02:55

4.9K

Synthetic biology is an interdisciplinary science that involves using principles from disciplines such as engineering, molecular biology, cell biology, and systems biology. It involves remodeling existing organisms from nature or constructing completely new synthetic organisms for applications such as protein or enzyme production, bioremediation, value-added macromolecule production, and the addition of desirable traits to crops, to name a few.
Golden rice
Golden rice is a genetically modified...

Size and Structure of Viral Genomes 01:26

125

Viral genomes exhibit remarkable diversity in size, structure, and composition, influencing their replication strategies and interactions with host cells. These genomes consist of either DNA or RNA and may be linear or circular. Additionally, they can be single-stranded or double-stranded, with each configuration affecting how the virus propagates within a host. RNA viruses, for instance, generally have smaller genomes than DNA viruses, a factor that contributes to their high mutation rates and...

Comparing Mitochondrial, Chloroplast, and Prokaryotic Genomes 02:16

12.8K

The present-day mitochondrial and chloroplast genomes have retained some of the characteristics of their ancestral prokaryotes and also have acquired new attributes during their evolution within eukaryotic cells. Like prokaryotic genomes, mitochondrial and chloroplast genomes neither bind with histone-like proteins nor show complex packaging into chromosome-like structures, as observed in eukaryotes. Unlike mitotic cell divisions observed in eukaryotic cells, mitochondria and chloroplasts...

DNA Bacteriophages 01:26

127

Bacteriophages, or phages, are viruses that specifically infect bacteria, utilizing their genetic material to hijack host cellular machinery for replication. DNA bacteriophages employ single-stranded DNA (ssDNA) or double-stranded DNA (dsDNA) genomes. These phages exhibit diverse replication strategies and host interactions, influencing their ecological roles and applications in biotechnology and medicine.ssDNA BacteriophagesssDNA phages, with their small genomes, utilize unique strategies to...

Viruses with RNA Genomes 01:29

100

RNA viruses are categorized into positive-strand, negative-strand, or double-stranded groups based on their genomic structure and replication mechanisms. This classification dictates how they exploit host cellular machinery for protein synthesis and replication. Some RNA viruses also utilize reverse transcription as part of their life cycle, further diversifying their replication strategies.Positive-Strand RNA VirusesPositive-strand RNA viruses have genomes that function directly as messenger...

Plasmids 01:28

108

Plasmids are extrachromosomal DNA molecules found in bacteria, archaea, and some eukaryotic microbes like yeast. These small, circular DNA structures typically contain fewer than 30 genes, although some may exist linearly. Plasmids vary in their number within a cell, known as copy number. Single-copy plasmids are present in one copy per cell and multi-copy plasmids are present in multiple copies, reaching over 100 copies per cell.Plasmids usually replicate independently of the chromosomal DNA...