Programmable tools for targeted analysis of epigenetic DNA modifications.
Curr Opin Chem Biol
; 63: 1-10, 2021 08.
Article
em En
| MEDLINE
| ID: mdl-33588304
ABSTRACT
Modifications of the cytosine 5-position are dynamic epigenetic marks of mammalian DNA with important regulatory roles in development and disease. Unraveling biological functions of such modified nucleobases is tightly connected with the potential of available methods for their analysis. Whereas genome-wide nucleobase quantification and mapping are first-line analyses, targeted analyses move into focus the more genomic sites with high biological significance are identified. We here review recent developments in an emerging field that addresses such targeted analyses via probes that combine a programmable, sequence-specific DNA-binding domain with the ability to directly recognize or cross-link an epigenetically modified nucleobase of interest. We highlight how such probes offer simple, high-resolution nucleobase analyses in vitro and enable in situ correlations between a nucleobase and other chromatin regulatory elements at user-defined loci on the single-cell level by imaging.
Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
DNA
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5-Metilcitosina
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Epigênese Genética
Limite:
Humans
Idioma:
En
Ano de publicação:
2021
Tipo de documento:
Article