Chapter title |
Domain Structure of the Dnmt1, Dnmt3a, and Dnmt3b DNA Methyltransferases.
|
---|---|
Chapter number | 4 |
Book title |
DNA Methyltransferases - Role and Function
|
Published in |
Advances in experimental medicine and biology, November 2016
|
DOI | 10.1007/978-3-319-43624-1_4 |
Pubmed ID | |
Book ISBNs |
978-3-31-943622-7, 978-3-31-943624-1
|
Authors |
Shoji Tajima, Isao Suetake, Kohei Takeshita, Atsushi Nakagawa, Hironobu Kimura |
Editors |
Albert Jeltsch, Renata Z. Jurkowska |
Abstract |
In mammals, three DNA methyltransferases, Dnmt1, Dnmt3a, and Dnmt3b, have been identified. Dnmt3a and Dnmt3b are responsible for establishing DNA methylation patterns produced through their de novo-type DNA methylation activity in implantation stage embryos and during germ cell differentiation. Dnmt3-like (Dnmt3l), which is a member of the Dnmt3 family but does not possess DNA methylation activity, was reported to be indispensable for global methylation in germ cells. Once the DNA methylation patterns are established, maintenance-type DNA methyltransferase Dnmt1 faithfully propagates them to the next generation via replication. All Dnmts possess multiple domains, and in this chapter, the structures and functions of these domains are described. |
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