相关实验视频

Updated: Jun 15, 2025

mRNA Interactome Capture from Plant Protoplasts
12:29

mRNA Interactome Capture from Plant Protoplasts

Published on: July 28, 2017

9.1K

在基因调节和植物防御中,Pol V转录的RdDM独立功能

Yuxiang Yuan1,2, Yujie Liu1, Lu Han1

  • 1Center for Plant Biology, School of Life Sciences, Tsinghua University, Beijing, China.

Nature plants
|August 26, 2024
PubMed
概括

RNA聚合酶V (Pol V) 调节植物防御基因,独立于DNA甲基化. 聚乙烯转录物 (PVTs) 直接控制基因表达,揭示了超出RNA指导的DNA甲基化之外的新型调节作用.

更多相关视频

Screening and Identification of RNA Silencing Suppressors from Secreted Effectors of Plant Pathogens10:19

Screening and Identification of RNA Silencing Suppressors from Secreted Effectors of Plant Pathogens

Published on: February 3, 2020

6.3K
Author Spotlight: Microscopic Analysis of Protein Localization at Plasmodesmata in Plants05:54

Author Spotlight: Microscopic Analysis of Protein Localization at Plasmodesmata in Plants

Published on: November 1, 2024

2.1K

相关概念视频

Cell Signaling in Plants01:25

Cell Signaling in Plants

Plant cells communicate to coordinate their cycle of growth, flowering and fruiting, and activities in roots, shoots, and leaves in response to the changing environmental conditions. Plant signaling is distinct from animal signaling. Plants primarily utilize enzyme-linked receptors, whereas the largest class of cell-surface receptors in animals are G-protein coupled receptors (GPCRs). Unlike animals, receptor tyrosine kinases are rare in plants. Instead, plants have a diverse class of...
5.6K
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
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
Experimental RNAi02:15

Experimental RNAi

RNA interference (RNAi) is a cellular mechanism that inhibits gene expression by suppressing its transcription or activating the RNA degradation process. The mechanism was discovered by Andrew Fire and Craig Mello in 1998 in plants. Today, it is observed in almost all eukaryotes, including protozoa, flies, nematodes, insects, parasites, and mammals. This precise cellular mechanism of gene silencing has been developed into a technique that provides an efficient way to identify and determine the...
6.1K
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
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...
8.5K