Search Results - "O'Halloran, Thomas V."
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Christopher T. Walsh (1944-2023)
Published in Science (American Association for the Advancement of Science) (24-02-2023)“…A luminous scholar and mentor at the interface of chemistry, biology, and medicine…”
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Arsenoplatin‑1 Is a Dual Pharmacophore Anticancer Agent
Published in Journal of the American Chemical Society (24-04-2019)“…Arsenoplatins are adducts of two chemically important anticancer drugs, cisplatin and arsenic trioxide, that have a Pt(II) bond to an As(III) hydroxide…”
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3
Allosteric transcriptional regulation via changes in the overall topology of the core promoter
Published in Science (American Association for the Advancement of Science) (21-08-2015)“…Many transcriptional activators act at a distance from core promoter elements and work by recruiting RNA polymerase through protein-protein interactions. We…”
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CueR activates transcription through a DNA distortion mechanism
Published in Nature chemical biology (01-01-2021)“…The MerR-family transcription factors (TFs) are a large group of bacterial proteins responding to cellular metal ions and multiple antibiotics by binding…”
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Dynamic zinc fluxes regulate meiotic progression in Caenorhabditis elegans
Published in Biology of reproduction (09-08-2022)“…Zinc influx and efflux events are essential for meiotic progression in oocytes of several mammalian and amphibian species, but it is less clear whether this…”
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Quantitative mapping of zinc fluxes in the mammalian egg reveals the origin of fertilization-induced zinc sparks
Published in Nature chemistry (01-02-2015)“…Fertilization of a mammalian egg initiates a series of ‘zinc sparks’ that are necessary to induce the egg-to-embryo transition. Despite the importance of these…”
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Molecular Pathways: Revisiting Glycogen Synthase Kinase-3β as a Target for the Treatment of Cancer
Published in Clinical cancer research (15-04-2017)“…Glycogen synthase kinase-3β (GSK-3β), a serine/threonine protein kinase, is a complex regulator of numerous cellular functions. GSK-3β is a unique kinase which…”
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8
Activation of superoxide dismutases: Putting the metal to the pedal
Published in Biochimica et biophysica acta (01-07-2006)“…Superoxide dismutases (SOD) are important anti-oxidant enzymes that guard against superoxide toxicity. Various SOD enzymes have been characterized that employ…”
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A new role for Zinc limitation in bacterial pathogenicity: modulation of α-hemolysin from uropathogenic Escherichia coli
Published in Scientific reports (25-04-2018)“…Metal limitation is a common situation during infection and can have profound effects on the pathogen’s success. In this report, we examine the role of zinc…”
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The zinc spark is an inorganic signature of human egg activation
Published in Scientific reports (26-04-2016)“…Egg activation refers to events required for transition of a gamete into an embryo, including establishment of the polyspermy block, completion of meiosis,…”
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11
A place for thioether chemistry in cellular copper ion recognition and trafficking
Published in Nature chemical biology (01-03-2008)“…Over the last decade, cysteine thiolate ligands have been shown to be critical to the Cu( I ) (cuprous) binding chemistry of many cytosolic metallochaperone…”
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12
The bacterial multidrug resistance regulator BmrR distorts promoter DNA to activate transcription
Published in Nature communications (08-12-2020)“…The MerR-family proteins represent a unique family of bacteria transcription factors (TFs), which activate transcription in a manner distinct from canonical…”
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13
Quantitative imaging approaches to understanding biological processing of metal ions
Published in Current opinion in chemical biology (01-08-2022)“…Faster, more sensitive, and higher resolution quantitative instrumentation are aiding a deeper understanding of how inorganic chemistry regulates key…”
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Iron drives anabolic metabolism through active histone demethylation and mTORC1
Published in Nature cell biology (01-10-2023)“…All eukaryotic cells require a minimal iron threshold to sustain anabolic metabolism. However, the mechanisms by which cells sense iron to regulate anabolic…”
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Zinc availability regulates exit from meiosis in maturing mammalian oocytes
Published in Nature chemical biology (01-09-2010)“…Probing the biological location and function of transition metals has proven difficult. X-ray fluorescence microscopy in combination with an array of metal…”
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Interrogating Intracellular Zinc Chemistry with a Long Stokes Shift Zinc Probe ZincBY‑4
Published in Journal of the American Chemical Society (23-10-2019)“…Previous work has shown that fluctuations in zinc content and subcellular localization play key roles in regulating cell cycle progression; however, a deep…”
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Structural and mechanistic basis of zinc regulation across the E. coli Zur regulon
Published in PLoS biology (01-11-2014)“…Commensal microbes, whether they are beneficial or pathogenic, are sensitive to host processes that starve or swamp the prokaryote with large fluctuations in…”
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Zinc Sparks Are Triggered by Fertilization and Facilitate Cell Cycle Resumption in Mammalian Eggs
Published in ACS chemical biology (15-07-2011)“…In last few hours of maturation, the mouse oocyte takes up over twenty billion zinc atoms and arrests after the first meiotic division, until fertilization or…”
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Folate-mediated intracellular drug delivery increases the anticancer efficacy of nanoparticulate formulation of arsenic trioxide
Published in Molecular cancer therapeutics (01-07-2009)“…Arsenic trioxide (As 2 O 3 ) is a frontline drug for treatment of acute promyelocytic leukemia and is in clinical trials for treatment of other malignancies,…”
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Anticancer Activity of Small-Molecule and Nanoparticulate Arsenic(III) Complexes
Published in Inorganic chemistry (04-11-2013)“…Starting in ancient China and Greece, arsenic-containing compounds have been used in the treatment of disease for over 3000 years. They were used for a variety…”
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