a downstream cpg island controls transcript initiation and elongation and the methylation state of the imprinted airn macro ncrna promoter下游cpg岛控制转录起始和延伸和印airn宏观ncrna启动子的甲基化状态.pdfVIP

a downstream cpg island controls transcript initiation and elongation and the methylation state of the imprinted airn macro ncrna promoter下游cpg岛控制转录起始和延伸和印airn宏观ncrna启动子的甲基化状态.pdf

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a downstream cpg island controls transcript initiation and elongation and the methylation state of the imprinted airn macro ncrna promoter下游cpg岛控制转录起始和延伸和印airn宏观ncrna启动子的甲基化状态

A Downstream CpG Island Controls Transcript Initiation and Elongation and the Methylation State of the Imprinted Airn Macro ncRNA Promoter 1¤a 1 1 1 2 Martha V. Koerner , Florian M. Pauler , Quanah J. Hudson , Federica Santoro , Anna Sawicka , 1 1¤b 1¤c 1¤d 1 Philipp M. Guenzl , Stefan H. Stricker , Yvonne M. Schichl , Paulina A. Latos , Ruth M. Klement , 1 3 2 1 1 Katarzyna E. Warczok , Jacek Wojciechowski , Christian Seiser , Robert Kralovics , Denise P. Barlow * 1 CeMM–Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria, 2 Max F. Perutz Laboratories, Department of Medical Biochemistry, Medical University of Vienna, Vienna, Austria, 3 IMP/IMBA Transgenic Service, Research Institute of Molecular Pathology, Vienna, Austria Abstract A CpG island (CGI) lies at the 59 end of the Airn macro non-protein-coding (nc) RNA that represses the flanking Igf2r promoter in cis on paternally inherited chromosomes. In addition to being modified on maternally inherited chromosomes by a DNA methylation imprint, the Airn CGI shows two unusual organization features: its position immediately downstream of the Airn promoter and transcription start site and a series of tandem direct repeats (TDRs) occupying its second half. The physical separation of the Airn promoter from the CGI provides a model to investigate if the CGI plays distinct

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