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Sökning: WFRF:(Haracska Lajos)

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1.
  • Brasko, Csilla, et al. (författare)
  • Intelligent image-based in situ single-cell isolation
  • 2018
  • Ingår i: Nature Communications. - : NATURE PUBLISHING GROUP. - 2041-1723. ; 9
  • Tidskriftsartikel (refereegranskat)abstract
    • Quantifying heterogeneities within cell populations is important for many fields including cancer research and neurobiology; however, techniques to isolate individual cells are limited. Here, we describe a high-throughput, non-disruptive, and cost-effective isolation method that is capable of capturing individually targeted cells using widely available techniques. Using high-resolution microscopy, laser microcapture microscopy, image analysis, and machine learning, our technology enables scalable molecular genetic analysis of single cells, targetable by morphology or location within the sample.
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2.
  • Jansen, Jacob G., et al. (författare)
  • Separate Domains of Rev1 Mediate Two Modes of DNA Damage Bypass in Mammalian Cells
  • 2009
  • Ingår i: Molecular and Cellular Biology. - 0270-7306 .- 1098-5549. ; 29:11, s. 3113-3123
  • Tidskriftsartikel (refereegranskat)abstract
    • The Y family DNA polymerase Rev1 has been proposed to play a regulatory role in the replication of damaged templates. To elucidate the mechanism by which Rev1 promotes DNA damage bypass, we have analyzed the progression of replication on UV light-damaged DNA in mouse embryonic fibroblasts that contain a defined deletion in the N-terminal BRCT domain of Rev1 or that are deficient for Rev1. We provide evidence that Rev1 plays a coordinating role in two modes of DNA damage bypass, i.e., an early and a late pathway. The cells carrying the deletion in the BRCT domain are deficient for the early pathway, reflecting a role of the BRCT domain of Rev1 in mutagenic translesion synthesis. Rev1-deficient cells display a defect in both modes of DNA damage bypass. Despite the persistent defect in the late replicational bypass of fork-blocking (6-4) pyrimidine-pyrimidone photoproducts, overall replication is not strongly affected by Rev1 deficiency. This results in almost completely replicated templates that contain gaps encompassing the photoproducts. These gaps are inducers of DNA damage signaling leading to an irreversible G(2) arrest. Our results corroborate a model in which Rev1-mediated DNA damage bypass at postreplicative gaps quenches irreversible DNA damage responses.
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