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S-adenosylmethionine and protein methylation.
1Dipartimento di Medicina e Oncologia Sperimentale, Sezione di Biochimica, Università di Torino, Torino, Italy. mariaangelica.grillo@unito.it
Amino Acids
|April 20, 2005
Summary
This review covers enzymes that methylate proteins using S-adenosylmethionine, focusing on carboxyl and nitrogen group modifications. It also explores the potential reversibility of these crucial protein methylation reactions.
Area of Science:
- Biochemistry
- Molecular Biology
- Enzymology
Background:
- Protein methylation is a key post-translational modification.
- S-adenosylmethionine (SAM) is the primary methyl group donor.
- Methylation occurs at various amino acid residues, including carboxyl and nitrogen groups.
Purpose of the Study:
- To review enzymes catalyzing protein methylation by S-adenosylmethionine.
- To discuss methylation at both carboxyl and nitrogen groups.
- To consider the reversibility of these enzymatic reactions.
Main Methods:
- Literature review of existing research on protein methylation enzymes.
- Analysis of biochemical pathways involving S-adenosylmethionine.
- Examination of evidence for reversible methylation processes.
Main Results:
- Identified key enzymes responsible for protein methylation via S-adenosylmethionine.
- Detailed the mechanisms of methylation at carboxyl and nitrogen sites.
- Presented a discussion on the potential for reversibility in these methylation reactions.
Conclusions:
- Protein methylation by S-adenosylmethionine is a diverse enzymatic process.
- Understanding the reversibility of methylation is critical for comprehending protein regulation.