Related Experiment Video

Updated: Aug 23, 2026

Sequence-specific Labeling of Nucleic Acids and Proteins with Methyltransferases and Cofactor Analogues
12:07

Sequence-specific Labeling of Nucleic Acids and Proteins with Methyltransferases and Cofactor Analogues

Published on: November 22, 2014

Methylthioadenosine

Matías A Avila1, Elena R García-Trevijano, Shelly C Lu

  • 1Division of Hepatology and Gene Therapy, F.I.M.A, University of Navarra, Pamplona, Spain.

The International Journal of Biochemistry & Cell Biology
|August 18, 2004
PubMed

Insights

5'-Methylthioadenosine (MTA), a nucleoside in all tissues, regulates gene expression, proliferation, differentiation, and apoptosis. MTA shows therapeutic potential for liver damage and cancer.

Area of Science:

  • Biochemistry
  • Cell Biology
  • Molecular Biology

Background:

  • 5'-Methylthioadenosine (MTA) is a naturally occurring nucleoside found in mammalian tissues.
  • MTA is a product of the polyamine biosynthetic pathway, derived from S-adenosylmethionine.
  • It is metabolized by MTA-phosphorylase, linking methionine and purine salvage pathways.

Purpose of the Study:

  • To explore the multifaceted cellular effects of 5'-Methylthioadenosine (MTA).
  • To investigate the potential regulatory role of endogenous MTA in cellular processes.
  • To evaluate the therapeutic potential of MTA in models of liver damage and cancer.

Main Methods:

  • Literature review of existing studies on MTA.
  • Analysis of MTA's role in biochemical pathways.
  • Examination of cellular responses influenced by MTA, including gene expression, proliferation, differentiation, and apoptosis.

Main Results:

  • MTA influences critical cellular responses such as gene expression, proliferation, differentiation, and apoptosis.
  • Evidence suggests MTA may play a regulatory role in cellular functions.
  • Studies in liver damage and cancer models indicate MTA's therapeutic potential.

Conclusions:

  • 5'-Methylthioadenosine (MTA) exerts significant influence on cellular processes.
  • Endogenous MTA may have a physiological regulatory role.
  • MTA warrants further investigation for therapeutic applications in liver disease and oncology.

More Related Videos

In Vitro Assay to Measure Phosphatidylethanolamine Methyltransferase Activity09:33

In Vitro Assay to Measure Phosphatidylethanolamine Methyltransferase Activity

Published on: January 5, 2016

Antibody-Free Assay for RNA Methyltransferase Activity Analysis08:31

Antibody-Free Assay for RNA Methyltransferase Activity Analysis

Published on: July 9, 2019

Related Concept Videos

Phase II Reactions: Methylation Reactions01:17

Phase II Reactions: Methylation Reactions

Methylation is a phase II biotransformation process involving the attachment of a methyl group to a substrate. Enzymes known as methyltransferases orchestrate this reaction.
The mechanism of methylation unfolds in two stages. The first stage sees a methyltransferase enzyme facilitating the transfer of a methyl group from S-adenosylmethionine (SAM) to the substrate, forming S-adenosylhomocysteine (SAH). The second stage involves further metabolism of SAH into homocysteine, which can be recycled...
Biosynthesis of Nucleic Acids01:28

Biosynthesis of Nucleic Acids

Nucleic acid biosynthesis is a fundamental biochemical process that produces the purine and pyrimidine nucleotides essential for DNA and RNA synthesis. This pathway maintains a balanced nucleotide pool, preventing imbalances that could jeopardize genetic integrity and cellular function. Given the crucial role of nucleotides, their synthesis is tightly regulated to ensure proper cellular homeostasis.Purine BiosynthesisThe biosynthesis of purine nucleotides begins with ribose-5-phosphate, a...
Transfer RNA Synthesis02:36

Transfer RNA Synthesis

One of the unique features of tRNA is the presence of modified bases. In some tRNAs, modified bases account for nearly 20% of the total bases in the molecule. Altogether, these unusual bases protect the tRNA from enzymatic degradation by RNases.
Each of these chemical modifications is carried by a specific enzyme, post-transcription. All of these enzymes have unique base and site-specificity. Methylation, the most common chemical modification, is carried by at least nine different enzymes, with...
Pharmacogenetics of Drug Targets: β₂-Adrenergic Receptors, Apo E, Thymidylate Synthase01:11

Pharmacogenetics of Drug Targets: β₂-Adrenergic Receptors, Apo E, Thymidylate Synthase

Genetic polymorphisms in drug targets have emerged as critical determinants of interindividual variability in drug response and toxicity. Pharmacogenomic investigations increasingly focus on identifying these variations to personalize and optimize therapeutic interventions. A drug target may be a receptor, enzyme, or signaling protein involved in pharmacologic responses or disease-related pathways. While early pharmacogenetic studies focused primarily on drug metabolism, current research...
Proofreading01:43

Proofreading

Synthesis of new DNA molecules starts when DNA polymerase links nucleotides together in a sequence that is complementary to the template DNA strand. DNA polymerase has a higher affinity for the correct base to ensure fidelity in DNA replication. The DNA polymerase furthermore proofreads during replication, using an exonuclease domain that cuts off incorrect nucleotides from the nascent DNA strand.Errors during Replication Are Corrected by the DNA Polymerase EnzymeGenomic DNA is synthesized in...
RNA Editing02:23

RNA Editing

RNA editing is a post-transcriptional modification where a precursor mRNA (pre-mRNA) nucleotide sequence is changed by base insertion, deletion, or modification. The extent of RNA editing varies from a few hundred bases, in mitochondrial DNA of trypanosomes, to a just single base, in nuclear genes of mammals. Even a single base change in the pre-mRNA can convert a codon for one amino acid into the codon for another amino acid or a stop codon. This type of re-coding can significantly affect the...