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Types of RNA01:20

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Three main types of RNA are involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). These RNAs perform diverse functions and can be broadly classified as protein-coding or non-coding RNA. Non-coding RNAs play important roles in regulating gene expression in response to developmental and environmental changes. Non-coding RNAs in prokaryotes can be manipulated to develop more effective antibacterial drugs for human or animal use.
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Three main types of RNA are involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). These RNAs perform diverse functions and can be broadly classified as protein-coding or non-coding RNA. Non-coding RNAs play important roles in the regulation of gene expression in response to developmental and environmental changes. Non-coding RNAs in prokaryotes can be manipulated to develop more effective antibacterial drugs for human or animal use.
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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...
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Noncoding but Coding: Pri-miRNA into the Action.

Ashish Prasad1, Namisha Sharma1, Manoj Prasad1

  • 1National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110067, India.

Trends in Plant Science
|December 23, 2020
PubMed
Summary
This summary is machine-generated.

Some primary microRNAs (pri-miRNAs) produce micropeptides (miPEPs) that may enhance miRNA accumulation. This suggests miPEPs could be valuable for improving crop traits in agriculture.

Keywords:
miPEPsmiRNAregulatory peptides

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Area of Science:

  • Molecular Biology
  • Plant Science
  • Agricultural Science

Background:

  • Primary microRNAs (pri-miRNAs) can encode small peptides known as micropeptides (miPEPs).
  • It has been hypothesized that miPEPs positively regulate the accumulation of their corresponding miRNAs.
  • Emerging evidence supports this regulatory model.

Purpose of the Study:

  • To investigate the role of miPEPs in miRNA accumulation.
  • To explore the potential application of miPEPs in agriculture for enhancing crop agronomic traits.

Main Methods:

  • This study likely involved molecular biology techniques to analyze pri-miRNA and miPEP expression and function.
  • Experimental validation of miPEP-mediated regulation of miRNA levels was probably performed.
  • Potential applications in crop improvement were likely assessed through relevant assays.

Main Results:

  • Data indicate that miPEPs are produced from some pri-miRNAs.
  • Evidence supports a positive regulatory role for miPEPs in the accumulation of their cognate miRNAs.
  • The findings suggest that miPEPs hold promise for agricultural applications.

Conclusions:

  • Micropeptides (miPEPs) derived from primary microRNAs (pri-miRNAs) play a role in regulating miRNA levels.
  • miPEPs represent a potential tool for enhancing crop agronomic traits in the agricultural sector.