About: Bookmarking

An Entity of Type: Thing, from Named Graph: http://dbpedia.org, within Data Space: dbpedia.org

Bookmarking (also "gene bookmarking" or "mitotic bookmarking") refers to a potential mechanism of transmission of gene expression programs through cell division. During mitosis, gene transcription is silenced and most transcription factors are removed from chromatin. The term bookmarking compares transcription to reading from a book. The pause in transcription during mitosis is like closing the book. "Molecular bookmarks" are the factors that allow transcription to resume in an orderly fashion in newborn cells following mitosis (when the book is re-opened).

Property Value
dbo:abstract
  • Bookmarking (also "gene bookmarking" or "mitotic bookmarking") refers to a potential mechanism of transmission of gene expression programs through cell division. During mitosis, gene transcription is silenced and most transcription factors are removed from chromatin. The term bookmarking compares transcription to reading from a book. The pause in transcription during mitosis is like closing the book. "Molecular bookmarks" are the factors that allow transcription to resume in an orderly fashion in newborn cells following mitosis (when the book is re-opened). Bookmarks fulfill the following criteria: * at some point prior to the onset of mitosis, the promoters of genes that exist in a transcription-competent state become "marked" in some way, * this "mark" persists both during and after mitosis, and * the marking transmits gene expression memory by preventing the mitotic compaction of DNA at this locus, or by facilitating reassembly of transcription complexes on the promoter, or both. (en)
  • Em genética e epigenética, o marcador (ou bookmarking) é um fenômeno biológico que funciona como um mecanismo epigenético para a transmissão de memória celular do padrão de expressão de genes em uma célula, ao longo da mitose, às suas células-filhas. Isto é essencial para a manutenção do fenótipo de uma linhagem de células, de modo que, por exemplo, células hepáticas dividam em células hepáticas e não qualquer outro tipo de célula. (pt)
dbo:wikiPageID
  • 1431111 (xsd:integer)
dbo:wikiPageLength
  • 8029 (xsd:nonNegativeInteger)
dbo:wikiPageRevisionID
  • 1072824215 (xsd:integer)
dbo:wikiPageWikiLink
dbp:wikiPageUsesTemplate
dcterms:subject
rdfs:comment
  • Em genética e epigenética, o marcador (ou bookmarking) é um fenômeno biológico que funciona como um mecanismo epigenético para a transmissão de memória celular do padrão de expressão de genes em uma célula, ao longo da mitose, às suas células-filhas. Isto é essencial para a manutenção do fenótipo de uma linhagem de células, de modo que, por exemplo, células hepáticas dividam em células hepáticas e não qualquer outro tipo de célula. (pt)
  • Bookmarking (also "gene bookmarking" or "mitotic bookmarking") refers to a potential mechanism of transmission of gene expression programs through cell division. During mitosis, gene transcription is silenced and most transcription factors are removed from chromatin. The term bookmarking compares transcription to reading from a book. The pause in transcription during mitosis is like closing the book. "Molecular bookmarks" are the factors that allow transcription to resume in an orderly fashion in newborn cells following mitosis (when the book is re-opened). (en)
rdfs:label
  • Bookmarking (en)
  • Marcador (pt)
owl:sameAs
prov:wasDerivedFrom
foaf:isPrimaryTopicOf
is dbo:wikiPageDisambiguates of
is dbo:wikiPageRedirects of
is dbo:wikiPageWikiLink of
is foaf:primaryTopic of
Powered by OpenLink Virtuoso    This material is Open Knowledge     W3C Semantic Web Technology     This material is Open Knowledge    Valid XHTML + RDFa
This content was extracted from Wikipedia and is licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported License