Video Experimental Relacionado

Updated: May 6, 2026

Isolation of Translating Ribosomes Containing Peptidyl-tRNAs for Functional and Structural Analyses
11:19

Isolation of Translating Ribosomes Containing Peptidyl-tRNAs for Functional and Structural Analyses

Published on: February 26, 2011

20.5K

La amplificación del gen del ARN ribosomal en Tetrahymena puede estar asociada con la ruptura cromosómica y la

M C Yao

    Cell
    |June 1, 1981
    PubMed
    Resumen

    Los investigadores estudiaron el ADN en Tetrahymena, encontrando que la rotura del cromosoma y la eliminación de la secuencia ocurren durante el desarrollo del macronúcleo. Esto impacta la organización y la amplificación del gen de ARN ribosomal (ADNr).

    Más Videos Relacionados

    Studying Ribonucleotide Incorporation: Strand-specific Detection of Ribonucleotides in the Yeast Genome and Measuring Ribonucleotide-induced Mutagenesis09:04

    Studying Ribonucleotide Incorporation: Strand-specific Detection of Ribonucleotides in the Yeast Genome and Measuring Ribonucleotide-induced Mutagenesis

    Published on: July 26, 2018

    7.5K
    Estimation of Telomeric Repeat-containing RNA from DNA/RNA Hybrid Complexes11:24

    Estimation of Telomeric Repeat-containing RNA from DNA/RNA Hybrid Complexes

    Published on: December 5, 2025

    391

    Videos de Conceptos Relacionados

    Translesion DNA Polymerases02:10

    Translesion DNA Polymerases

    Translesion (TLS) polymerases rescue stalled DNA polymerases at sites of damaged bases by replacing the replicative polymerase and installing a nucleotide across the damaged site. Doing so, TLS allows additional time for the cell to repair the damage before resuming regular DNA replication.
    TLS polymerases are found in all three domains of life - archaea, bacteria, and eukaryotes. Of the different classes of TLS polymerases, members of the Y family are fitted with specialized structures that...
    9.4K
    Eukaryotic RNA Polymerases00:58

    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...
    17.3K
    Ribosomal RNA Synthesis02:53

    Ribosomal RNA Synthesis

    Ribosome synthesis is a highly complex and coordinated process involving more than 200 assembly factors. The synthesis and processing of ribosomal components occurs not only in the nucleolus but also in the nucleoplasm and the cytoplasm of eukaryotic cells.
    Ribosome biogenesis begins with the synthesis of 5S and 45S pre-rRNAs by distinct RNA polymerases. The primary transcripts are extensively processed and modified before they are bound and folded by ribosomal proteins and assembly factors,...
    12.3K
    Transcription Attenuation in Prokaryotes02:42

    Transcription Attenuation in Prokaryotes

    Transcriptional attenuation occurs when RNA transcription is prematurely terminated due to the formation of a terminator mRNA hairpin structure.  Bacteria use these hairpins to regulate the transcription process and control the synthesis of several amino acids including histidine, lysine, threonine, and phenylalanine. Transcription attenuation takes place in the non-coding regions of mRNA.
    There are several different mechanisms used to attenuate transcription. In ribosome mediated...
    14.6K
    Ribosome Profiling02:24

    Ribosome Profiling

    Ribosome profiling or ribo-sequencing is a deep sequencing technique that produces a snapshot of active translation in a cell. It selectively sequences the mRNAs protected by ribosomes to get an insight into a cell’s translation landscape at any given point in time.
    Applications of ribosome profiling
    Ribosome profiling has many applications, including in vivo monitoring of translation inside a particular organ or tissue type and quantifying new protein synthesis levels.
    The technique...
    3.2K
    Coordination of Gene Expression Processes in Bacteria01:29

    Coordination of Gene Expression Processes in Bacteria

    The DNA replication, transcription, and translation processes are intricately coupled in bacteria, allowing efficient gene expression and rapid protein synthesis. While this physical and functional coordination is advantageous, it introduces challenges that bacteria overcome through specific regulatory mechanisms.Coupling of Replication, Transcription, and TranslationThe coupling of replication, transcription, and translation is a hallmark of bacterial gene expression. As the replisome unwinds...
    1.1K