相关实验视频

Updated: Jun 13, 2025

Analysis of Cap-binding Proteins in Human Cells Exposed to Physiological Oxygen Conditions
10:40

Analysis of Cap-binding Proteins in Human Cells Exposed to Physiological Oxygen Conditions

Published on: December 28, 2016

7.8K

eIF3d和eIF3e通过选择性翻译控制可以通过新型小分子抑制的低氧

Stephen C Purdy, Kate Matlin, Christopher Alderman

    bioRxiv : the preprint server for biology
    |June 12, 2025
    PubMed
    概括

    缺氧会通过翻译引发细胞可塑性和转移,而不仅仅是转录. 针对eIF3e可以选择性地抑制这种应激反应,为癌症提供潜在的治疗途径.

    更多相关视频

    Monitoring eIF4F Assembly by Measuring eIF4E-eIF4G Interaction in Live Cells08:47

    Monitoring eIF4F Assembly by Measuring eIF4E-eIF4G Interaction in Live Cells

    Published on: May 1, 2020

    3.1K
    Co-immunoprecipitation Assay Using Endogenous Nuclear Proteins from Cells Cultured Under Hypoxic Conditions09:17

    Co-immunoprecipitation Assay Using Endogenous Nuclear Proteins from Cells Cultured Under Hypoxic Conditions

    Published on: August 2, 2018

    18.1K

    相关概念视频

    Regulation of Angiogenesis and Blood Supply01:24

    Regulation of Angiogenesis and Blood Supply

    Rapidly dividing tumors, embryos, and wounded tissues require more oxygen than usual, lowering the oxygen concentration in the blood. At low oxygen or hypoxic conditions, an oxygen-sensitive transcription factor called the hypoxia-inducible factor 1 or HIF1 is activated. HIF1 is a dimeric protein of alpha (ɑ) and beta (β) subunits.  Under optimal oxygen conditions, HIF1β is present in the nucleus while HIF1ɑ remains in the cytosol. HIF1ɑ is hydroxylated by prolyl...
    2.5K
    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...
    875
    Eukaryotic Transcription Inhibitors01:52

    Eukaryotic Transcription Inhibitors

    Certain biochemical processes, such as embryonic development and cell growth regulation, depend on the repression of specific genes. DNA binding proteins known as eukaryotic transcription inhibitors regulate the repression of gene expression in eukaryotes. The presence of these inhibitors at the required location and time in the cell is triggered by the presence of hormones and additional signals from other cells.
    Eukaryotic transcription inhibitors usually contain two distinct domains, a...
    9.8K
    Regulation of Expression Occurs at Multiple Steps02:24

    Regulation of Expression Occurs at Multiple Steps

    Gene expression can be regulated at almost every step from gene to protein. Transcription is the step that is most commonly regulated. This involves the binding of proteins to short regulatory sequences on the DNA. This association can either promote or inhibit the transcription of a gene associated with the respective sequence.
    Transcription results in the generation of precursor (pre-mRNA) that consists of both exons and introns, which needs further processing before being translated to a...
    22.5K
    Riboswitches01:56

    Riboswitches

    Riboswitches are non-coding mRNA domains that regulate the transcription and translation of downstream genes without the help of proteins. Riboswitches bind directly to a metabolite and can form unique stem-loop or hairpin structures in response to the amount of the metabolite present. They have two distinct regions – a metabolite-binding aptamer and an expression platform.
    The aptamer has high specificity for a particular metabolite which allows riboswitches to specifically regulate...
    8.1K
    Leaky Scanning02:28

    Leaky Scanning

    During most eukaryotic translation processes, the small 40S ribosome subunit scans an mRNA from its 5' end until it encounters the first start AUG codon. The large 60S ribosomal subunit then joins the smaller one to initiate protein synthesis. The location of the translation initiation is largely determined by the nucleotides near the start codon as there may be multiple translation initiation sites present on the mRNA.  Marilyn Kozak discovered that the sequence RCCAUGG (where R...
    5.1K