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Báo cáo khoa học: Complex transcriptional and translational regulation of iPLA2c resulting in multiple gene products containing dual competing sites for mitochondrial or peroxisomal localization

Chia sẻ: Nguyen Thang | Ngày: | Loại File: PDF | Số trang:16

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Membrane-associated calcium-independent phospholipase A2c(iPLA2c) contains four potential in-frame methionine start sites (Mancuso, D.J. Jenkins, C.M. & Gross, R.W. (2000)J. Biol. Chem.275, 9937–9945), but the mechanisms regulating the types, amount and subcellular localization of iPLA2c in cells are incompletely understood. We now: (a) demonstrate the dramatic transcriptional repression of mRNAsynthesis encoding iPLA2cby a nucleotide sequence nested in the coding sequence itself; (b) localize the site of transcriptional repression to the most 5¢ sequence encoding the iPLA2choloprotein; (c) identify the presence of nuclear proteinconstituentswhichbind to the repressor regionbygel shift analysis;...

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Nội dung Text: Báo cáo khoa học: Complex transcriptional and translational regulation of iPLA2c resulting in multiple gene products containing dual competing sites for mitochondrial or peroxisomal localization

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