Search Results - "White, Katharine A."
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Cancer cell behaviors mediated by dysregulated pH dynamics at a glance
Published in Journal of cell science (15-02-2017)“…Dysregulated pH is a common characteristic of cancer cells, as they have an increased intracellular pH (pH ) and a decreased extracellular pH (pH ) compared…”
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An Optogenetic Tool to Raise Intracellular pH in Single Cells and Drive Localized Membrane Dynamics
Published in Journal of the American Chemical Society (17-11-2021)“…Intracellular pH (pHi) dynamics are critical for regulating normal cell physiology. For example, transient increases in pHi (7.2–7.6) regulate cell behaviors…”
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3
fluorophore ligase for site-specific protein labeling inside living cells
Published in Proceedings of the National Academy of Sciences - PNAS (15-06-2010)“…Biological microscopy would benefit from smaller alternatives to green fluorescent protein for imaging specific proteins in living cells. Here we introduce…”
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Intracellular pH Regulates Cancer and Stem Cell Behaviors: A Protein Dynamics Perspective
Published in Frontiers in oncology (26-08-2020)“…The International Society of Cancer Metabolism (ISCaM) meeting on Cancer Metabolic Rewiring, held in Braga Portugal in October 2019, provided an outstanding…”
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Prominent features of the amino acid mutation landscape in cancer
Published in PloS one (24-08-2017)“…Cancer can be viewed as a set of different diseases with distinctions based on tissue origin, driver mutations, and genetic signatures. Accordingly, each of…”
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Site-specific protein labeling using PRIME and chelation-assisted click chemistry
Published in Nature protocols (01-08-2013)“…This protocol describes an efficient method to site-specifically label cell-surface or purified proteins with chemical probes in two steps: probe incorporation…”
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Yeast Display Evolution of a Kinetically Efficient 13-Amino Acid Substrate for Lipoic Acid Ligase
Published in Journal of the American Chemical Society (18-11-2009)“…Escherichia coli lipoic acid ligase (LplA) catalyzes ATP-dependent covalent ligation of lipoic acid onto specific lysine side chains of three acceptor proteins…”
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8
Imaging trans-cellular neurexin-neuroligin interactions by enzymatic probe ligation
Published in PloS one (14-02-2013)“…Neurexin and neuroligin are transmembrane adhesion proteins that play an important role in organizing the neuronal synaptic cleft. Our lab previously reported…”
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A Histidine pH sensor regulates activation of the Ras-specific guanine nucleotide exchange factor RasGRP1
Published in eLife (27-09-2017)“…RasGRPs are guanine nucleotide exchange factors that are specific for Ras or Rap, and are important regulators of cellular signaling. Aberrant expression or…”
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Charactering ionizable residue networks at SH2 interfaces in pH-sensitive proteins
Published in Biophysical journal (10-02-2023)Get full text
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11
Oncogenic β-catenin mutations evade pH-regulated degradation
Published in Molecular & cellular oncology (02-01-2019)“…β-catenin has roles in cell-cell adhesion and Wnt signaling. We recently showed that β-catenin protein abundance is decreased at higher intracellular pH (pHi),…”
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Single-cell intracellular pH dynamics regulate the cell cycle by timing the G1 exit and G2 transition
Published in Journal of cell science (15-05-2023)“…Transient changes in intracellular pH (pHi) regulate normal cell behaviors, but roles for spatiotemporal pHi dynamics in single-cell behaviors remain unclear…”
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Selecting for pH sensitive flourescent proteins with library screening methods
Published in Biophysical journal (10-02-2023)Get full text
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14
Intracellular pH dynamics and charge-changing somatic mutations in cancer
Published in Cancer and metastasis reviews (15-06-2019)“…An unresolved question critical for understanding cancer is how recurring somatic mutations are retained and how selective pressures drive retention. Increased…”
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Intracellular pH differentially regulates transcription of metabolic and signaling pathways in normal epithelial cells
Published in The Journal of biological chemistry (01-10-2024)“…Intracellular pH (pHi) dynamics regulate normal cell function, and dysregulated pHi dynamics is an emerging hallmark of cancer (constitutively increased pHi)…”
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Low pH Facilitates Heterodimerization of Mutant Isocitrate Dehydrogenase IDH1-R132H and Promotes Production of 2‑Hydroxyglutarate
Published in Biochemistry (Easton) (29-06-2021)“…Isocitrate dehydrogenase 1 (IDH1) is a key metabolic enzyme for maintaining cytosolic levels of α-ketoglutarate (AKG) and preserving the redox environment of…”
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β-Catenin is a pH sensor with decreased stability at higher intracellular pH
Published in The Journal of cell biology (05-11-2018)“…β-Catenin functions as an adherens junction protein for cell-cell adhesion and as a signaling protein. β-catenin function is dependent on its stability, which…”
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Charting a New Frontier Integrating Mathematical Modeling in Complex Biological Systems from Molecules to Ecosystems
Published in Integrative and comparative biology (05-02-2022)“…Abstract Advances in quantitative biology data collection and analysis across scales (molecular, cellular, organismal, and ecological) have transformed how we…”
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Cancer and pH Dynamics: Transcriptional Regulation, Proteostasis, and the Need for New Molecular Tools
Published in Cancers (01-10-2020)“…An emerging hallmark of cancer cells is dysregulated pH dynamics. Recent work has suggested that dysregulated intracellular pH (pHi) dynamics enable diverse…”
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An acidic residue buried in the dimer interface of isocitrate dehydrogenase 1 (IDH1) helps regulate catalysis and pH sensitivity
Published in Biochemical journal (28-08-2020)“…Isocitrate dehydrogenase 1 (IDH1) catalyzes the reversible NADP+-dependent conversion of isocitrate to α-ketoglutarate (αKG) to provide critical cytosolic…”
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