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Sökning: WFRF:(Makowski Matthew)

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1.
  • Fang, Jun, et al. (författare)
  • Functional characterization of a multi-cancer risk locus on chr5p15.33 reveals regulation of TERT by ZNF148
  • 2017
  • Ingår i: Nature Communications. - : Springer Science and Business Media LLC. - 2041-1723. ; 8
  • Tidskriftsartikel (refereegranskat)abstract
    • Genome wide association studies (GWAS) have mapped multiple independent cancer susceptibility loci to chr5p15.33. Here, we show that fine-mapping of pancreatic and testicular cancer GWAS within one of these loci (Region 2 in CLPTM1L) focuses the signal to nine highly correlated SNPs. Of these, rs36115365-C associated with increased pancreatic and testicular but decreased lung cancer and melanoma risk, and exhibited preferred protein-binding and enhanced regulatory activity. Transcriptional gene silencing of this regulatory element repressed TERT expression in an allele-specific manner. Proteomic analysis identifies allele-preferred binding of Zinc finger protein 148 (ZNF148) to rs36115365-C, further supported by binding of purified recombinant ZNF148. Knockdown of ZNF148 results in reduced TERT expression, telomerase activity and telomere length. Our results indicate that the association with chr5p15.33-Region 2 may be explained by rs36115365, a variant influencing TERT expression via ZNF148 in a manner consistent with elevated TERT in carriers of the C allele.
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2.
  • Makowski, Matthew M, et al. (författare)
  • Picking a nucleosome lock : Sequence- and structure-specific recognition of the nucleosome.
  • 2020
  • Ingår i: Journal of Biosciences. - 0250-5991 .- 0973-7138. ; 45
  • Tidskriftsartikel (refereegranskat)abstract
    • The nucleosome presents a formidable barrier to DNA-templated transcription by the RNA polymerase II machinery. Overcoming this transcriptional barrier in a locus-specific manner requires sequence-specific recognition of nucleosomal DNA by 'pioneer' transcription factors (TFs). Cell fate decisions, in turn, depend on the coordinated action of pioneer TFs at cell lineage-specific gene regulatory elements. Although it is already appreciated that pioneer factors play a critical role in cell differentiation, our understanding of the structural and biochemical mechanisms by which they act is still rapidly expanding. Recent research has revealed novel insight into modes of nucleosome-TF binding and uncovered kinetic principles by which nucleosomal DNA compaction affects both TF binding and residence time. Here, we review progress and argue that these structural and kinetic studies suggest new models of gene regulation by pioneer TFs.
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