Detalles del recurso


T cell development comprises a stepwise process of commitment from a multipotent precursor. To define molecular mechanisms controlling this progression, we probed five stages spanning the commitment process using RNA-seq and ChIP-seq to track genome-wide shifts in transcription, cohorts of active transcription factor genes, histone modifications at diverse classes of cis-regulatory elements, and binding repertoire of GATA-3 and PU.1, transcription factors with complementary roles in T cell development. The results highlight potential promoter-distal cis-regulatory elements in play and reveal both activation sites and diverse mechanisms of repression that silence genes used in alternative lineages. Histone marking is dynamic and reversible, and though permissive marks anticipate, repressive marks often lag behind changes in transcription. In vivo binding of PU.1 and GATA-3 relative to epigenetic marking reveals distinctive factor-specific rules for recruitment of these crucial transcription factors to different subsets of their potential sites, dependent on dose and developmental context.

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Caltech Authors  


Zhang, Jingli A. -  Mortazavi, Ali -  Williams, Brian A. -  Wold, Barbara J. -  Rothenberg, Ellen V. - 

Id.: 55304949

Versión: 1.0

Estado: Final

Tipo:  application/ -  application/ -  application/ -  application/ -  application/ -  text/xml -  application/pdf -  application/ - 

Tipo de recurso: Article  -  PeerReviewed  - 

Tipo de Interactividad: Expositivo

Nivel de Interactividad: muy bajo

Audiencia: Estudiante  -  Profesor  -  Autor  - 

Estructura: Atomic

Coste: no

Copyright: sí

Formatos:  application/ -  application/ -  application/ -  application/ -  application/ -  text/xml -  application/pdf -  application/ - 

Requerimientos técnicos:  Browser: Any - 

Relación: [References]

Fecha de contribución: 24-ago-2016


* Zhang, Jingli A. and Mortazavi, Ali and Williams, Brian A. and Wold, Barbara J. and Rothenberg, Ellen V. (2012) Dynamic Transformations of Genome-wide Epigenetic Marking and Transcriptional Control Establish T Cell Identity. Cell, 149 (2). pp. 467-482. ISSN 0092-8674.

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