Evaluation of the enzymatic properties of DNA (cytosine-5)-methyltransferase M.ApeKI from archaea in the presence of metal ions.
Aeropyrum pernix K1
Archaea
DNA methyltransferase
Metal ions
Thermostable enzyme
Journal
Bioscience, biotechnology, and biochemistry
ISSN: 1347-6947
Titre abrégé: Biosci Biotechnol Biochem
Pays: England
ID NLM: 9205717
Informations de publication
Date de publication:
31 Jul 2024
31 Jul 2024
Historique:
medline:
1
8
2024
pubmed:
1
8
2024
entrez:
31
7
2024
Statut:
aheadofprint
Résumé
We previously identified M.ApeKI from Aeropyum pernix K1 as a highly thermostable DNA (cytosine-5)-methyltransferase. M.ApeKI uses the type II restriction-modification system (R-M system), among the best-studied R-M systems. Although endonucleases generally utilize Mg (II) as a cofactor, several reports have shown that MTases exhibit different reactions in the presence of metal ions. This study aim was to evaluate the enzymatic properties of DNA (cytosine-5)-methyltransferase M.ApeKI from archaea in the presence of metal ions. We evaluated the influence of metal ions on the catalytic activity and DNA binding of M.ApeKI. The catalytic activity was inhibited by Cu (II), Mg (II), Mn (II), and Zn (II), each at 5 mM. DNA binding was more strongly inhibited by 5 mM Cu (II) and 10 mM Zn (II). To our knowledge, this is the first report showing that DNA binding of typeII MTase is inhibited by metal ions.
Identifiants
pubmed: 39085041
pii: 7725074
doi: 10.1093/bbb/zbae106
pii:
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Informations de copyright
© The Author(s) 2024. Published by Oxford University Press on behalf of Japan Society for Bioscience, Biotechnology, and Agrochemistry.