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Functional groups are groups of atoms with specific chemical properties that occur within organic molecules and are sometimes denoted as “R”. Functional groups can “functionalize” a compound by enabling it to adopt different physical and chemical properties.
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Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is...
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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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miRNAtools: Advanced Training Using the miRNA Web of Knowledge.

Ewa Ł Stępień1, Marina C Costa2, Francisco J Enguita3

  • 1Department of Medical Physics, Marian Smoluchowski Institute of Physics, Jagiellonian University, 30-348 Kraków, Poland. e.stepien@uj.edu.pl.

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MicroRNAs (miRNAs) are key regulators of gene expression. The miRNAtools website provides a centralized repository of bioinformatics tools and tutorials for analyzing miRNA functions and regulatory actions.

Keywords:
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Area of Science:

  • Molecular Biology
  • Bioinformatics

Background:

  • MicroRNAs (miRNAs) are small non-coding RNAs that regulate gene expression.
  • miRNAs play crucial roles in cell biology and human diseases.
  • Computational tools are essential for predicting miRNA targets and analyzing their functions.

Purpose of the Study:

  • To create a centralized web repository of miRNA analysis tools and tutorials.
  • To guide students and researchers in understanding miRNA functions through practical training.
  • To consolidate dispersed information on miRNA analysis into a single, accessible platform.

Main Methods:

  • Development of the miRNAtools web repository (http://mirnatools.eu).
  • Compilation of various bioinformatics tools for miRNA analysis.
  • Creation of tutorials covering miRNA nomenclature, localization, target prediction, and functional analysis.

Main Results:

  • The miRNAtools website offers a comprehensive collection of resources for miRNA research.
  • Tutorials guide users through analyzing miRNA functions, from basic identification to cellular roles.
  • The repository organizes and presents information on miRNA analysis tools effectively.

Conclusions:

  • miRNAtools serves as a valuable educational resource for learning about miRNA biology and analysis.
  • The platform facilitates advanced training in computational miRNA research.
  • Accessible tools and tutorials are crucial for advancing the understanding of miRNA regulatory mechanisms.