Vol 9: Ikaros and RAG-2-Mediated Antisense Transcription Are Responsible for Lymphocyte-Specific Inactivation of NWC Promoter.Reportar como inadecuado



 Vol 9: Ikaros and RAG-2-Mediated Antisense Transcription Are Responsible for Lymphocyte-Specific Inactivation of NWC Promoter.


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This article is from PLoS ONE, volume 9.AbstractRecombination activating gene-2 RAG-2 and NWC are strongly evolutionarily conserved overlapping genes which are convergently transcribed. In non-lymphoid cells the NWC promoter is active whereas in lymphocytes it is inactive due to the DNA methylation. Analysing the mechanism responsible for lymphocyte-specific methylation and inactivation of NWC promoter we found that Ikaros, a lymphocyte-specific transcription factor, acts as a repressor of NWC promoter - thus identifying a new Ikaros target - but is insufficient for inducing its methylation which depends on the antisense transcription driven by RAG-2 promoter. Possible implications of these observations for understanding evolutionary mechanisms leading to lymphocyte specific expression of RAG genes are discussed.



Autor: Laszkiewicz, Agnieszka; Bzdzion, Lukasz; Kasztura, Monika; Sniezewski, Lukasz; Janik, Sylwia; Kisielow, Pawel; Cebrat, Malgorzata

Fuente: https://archive.org/







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