Metabolism of Diadenosine-5ʹ,5ʹʹʹ-P¹,P⁴-tetraphosphate (Ap₄A) in Cultured Mammalian Cells

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Methodology was developed which allowed the rapid and routine quantitation of subpicomole quantities of diadenosine-5ʹ,5ʹʹʹ-P¹,P⁴-tetraphosphate (Ap₄A) in cultured mammalian cells. This methodology includes the rapid extraction of cellular nucleotides in cold alkali, resolution of Ap₄A from the bulk of cellular materials on a highly specific boronate affinity resin, and quantitation of the dinucleotide in a coupled bioluminescence assay utilizing venom phosphodiesterase and firefly luciferase. The sensitivity and selectivity of this assay is demonstrated and contrasted with previously developed techniques. This assay was used to examine the role of Ap₄A in DNA replication and the cellular stress response.

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vii, 120 leaves : ill.

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Baker, Jeffrey C. (Jeffrey Clayton) December 1984.

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  • Baker, Jeffrey C. (Jeffrey Clayton)

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Methodology was developed which allowed the rapid and routine quantitation of subpicomole quantities of diadenosine-5ʹ,5ʹʹʹ-P¹,P⁴-tetraphosphate (Ap₄A) in cultured mammalian cells. This methodology includes the rapid extraction of cellular nucleotides in cold alkali, resolution of Ap₄A from the bulk of cellular materials on a highly specific boronate affinity resin, and quantitation of the dinucleotide in a coupled bioluminescence assay utilizing venom phosphodiesterase and firefly luciferase. The sensitivity and selectivity of this assay is demonstrated and contrasted with previously developed techniques. This assay was used to examine the role of Ap₄A in DNA replication and the cellular stress response.

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vii, 120 leaves : ill.

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UNT Theses and Dissertations

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  • December 1984

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  • Aug. 22, 2014, 6 p.m.

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  • Jan. 29, 2018, 12:57 p.m.

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Citations, Rights, Re-Use

Baker, Jeffrey C. (Jeffrey Clayton). Metabolism of Diadenosine-5ʹ,5ʹʹʹ-P¹,P⁴-tetraphosphate (Ap₄A) in Cultured Mammalian Cells, dissertation, December 1984; Denton, Texas. (digital.library.unt.edu/ark:/67531/metadc332282/: accessed February 25, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .