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Related Concept Videos

MicroRNAs01:22

MicroRNAs

MicroRNA (miRNA) are short, regulatory RNA transcribed from introns (non-coding regions of a gene) or intergenic regions (stretches of DNA present between genes). Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself, forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA...
MicroRNAs01:22

MicroRNAs

MicroRNA (miRNA) are short, regulatory RNA transcribed from introns—non-coding regions of a gene—or intergenic regions—stretches of DNA present between genes. Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA ends...
MicroRNAs01:22

MicroRNAs

MicroRNA (miRNA) are short, regulatory RNA transcribed from introns—non-coding regions of a gene—or intergenic regions—stretches of DNA present between genes. Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA ends...
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...
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...
RNA Interference01:23

RNA Interference

RNA interference (RNAi) is a process in which a small non-coding RNA molecule blocks the post-transcriptional expression of a gene by binding to its messenger RNA (mRNA) and preventing the protein from being translated.
This process occurs naturally in cells, often through the activity of genomically-encoded microRNAs. Researchers can take advantage of this mechanism by introducing synthetic RNAs to deactivate specific genes for research or therapeutic purposes. For example, RNAi could be used...

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Related Experiment Video

Updated: Jun 19, 2026

mirMachine: A One-Stop Shop for Plant miRNA Annotation
06:16

mirMachine: A One-Stop Shop for Plant miRNA Annotation

Published on: May 1, 2021

miRNA Target Prediction in Plants.

Noah Fahlgren1, James C Carrington

  • 1Department of Botany and Plant Pathology, Center for Genome Research and Biocomputing, Oregon State University, Corvallis, OR, USA.

Methods in Molecular Biology (Clifton, N.J.)
|October 6, 2009
PubMed
Summary

This study introduces a straightforward computational method for predicting plant microRNA (miRNA) targets. The approach utilizes a position-dependent scoring system to identify RNA targets with high complementarity to plant miRNAs.

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Last Updated: Jun 19, 2026

mirMachine: A One-Stop Shop for Plant miRNA Annotation
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RNA Blot Analysis for the Detection and Quantification of Plant MicroRNAs
14:41

RNA Blot Analysis for the Detection and Quantification of Plant MicroRNAs

Published on: July 11, 2020

Area of Science:

  • Plant molecular biology
  • Bioinformatics
  • Genomics

Background:

  • MicroRNAs (miRNAs) are crucial regulators of gene expression in plants.
  • Accurate prediction of miRNA targets is essential for understanding gene regulation.
  • Existing methods may not fully capture the nuances of plant miRNA-target interactions.

Purpose of the Study:

  • To present a simple and effective computational method for predicting plant miRNA targets.
  • To improve the accuracy of miRNA target identification in plants.
  • To provide a tool for researchers studying plant gene regulation.

Main Methods:

  • Development of a position-dependent scoring system for miRNA-target binding assessment.
  • Computational analysis of miRNA sequences and their potential RNA targets.
  • Validation of the prediction method against known plant miRNA-target interactions.

Main Results:

  • The proposed method accurately predicts plant miRNA targets based on complementarity.
  • The position-dependent scoring system enhances prediction specificity.
  • The method offers a simple yet powerful approach for target identification.

Conclusions:

  • This chapter describes an accessible computational tool for predicting plant miRNA targets.
  • The position-dependent scoring system is effective for identifying high-complementarity interactions.
  • The method facilitates further research into plant miRNA-mediated gene regulation.