Search Results - "O’Mara, Megan L."
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Mechanism of Activation of Protein Kinase JAK2 by the Growth Hormone Receptor
Published in Science (American Association for the Advancement of Science) (16-05-2014)“…Signaling from JAK (Janus kinase) protein kinases to STAT (signal transducers and activators of transcription) transcription factors is key to many aspects of…”
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The ryanodine receptor store-sensing gate controls Ca2+ waves and Ca2+-triggered arrhythmias
Published in Nature medicine (01-02-2014)“…In heart muscle cells, sarcoplasmic reticulum calcium overload leads to spontaneous calcium waves that can cause arrhythmias and sudden cardiac death. S.R…”
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Multidrug Resistance in Neisseria gonorrhoeae: Identification of Functionally Important Residues in the MtrD Efflux Protein
Published in mBio (19-11-2019)“…A key mechanism that uses to achieve multidrug resistance is the expulsion of structurally different antimicrobials by the MtrD multidrug efflux protein. MtrD…”
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High resolution crystal structure of a KRAS promoter G-quadruplex reveals a dimer with extensive poly-A π-stacking interactions for small-molecule recognition
Published in Nucleic acids research (04-06-2020)“…Aberrant KRAS signaling is a driver of many cancers and yet remains an elusive target for drug therapy. The nuclease hypersensitive element of the KRAS…”
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Synthetically controlling dendrimer flexibility improves delivery of large plasmid DNA
Published in Chemical science (Cambridge) (01-04-2017)“…Tools for editing the genome and epigenome have revolutionised the field of molecular biology and represent a new frontier in targeted therapeutic…”
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Imperfect coordination chemistry facilitates metal ion release in the Psa permease
Published in Nature chemical biology (01-01-2014)“…The PsaA binding protein delivers Mn 2+ to the human pathogen Streptococcus pneumoniae . Structural and biochemical studies now explain its metal specificity,…”
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AdcA and AdcAII employ distinct zinc acquisition mechanisms and contribute additively to zinc homeostasis in Streptococcus pneumoniae
Published in Molecular microbiology (01-02-2014)“…Summary Streptococcus pneumoniae is a globally significant human pathogen responsible for nearly 1 million deaths annually. Central to the ability of S…”
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Location of contact residues in pharmacologically distinct drug binding sites on P-glycoprotein
Published in Biochemical pharmacology (01-01-2017)“…[Display omitted] The multidrug resistance P-glycoprotein (P-gp) is characterised by the ability to bind and/or transport an astonishing array of drugs. This…”
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Hydrophobic Shielding Drives Catalysis of Hydride Transfer in a Family of F420H2‑Dependent Enzymes
Published in Biochemistry (Easton) (13-12-2016)“…A family of flavin/deazaflavin-dependent oxidoreductases (FDORs) from mycobacteria has been recently characterized and found to play a variety of catalytic…”
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mechanism of ABC transporters: general lessons from structural and functional studies of an antigenic peptide transporter
Published in The FASEB journal (01-05-2009)“…The shuttling of substrates across a cellular membrane frequently requires a specialized ATP-binding cassette (ABC) transporter, which couples the energy of…”
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Rv2074 is a novel F420H2‐dependent biliverdin reductase in Mycobacterium tuberculosis
Published in Protein science (01-09-2016)“…Bilirubin is a potent antioxidant that is produced from the reduction of the heme degradation product biliverdin. In mammalian cells and Cyanobacteria,…”
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The Effect of Environment on the Recognition and Binding of Vancomycin to Native and Resistant Forms of Lipid II
Published in Biophysical journal (07-12-2011)“…Molecular dynamics simulations and free energy calculations have been used to examine in detail the mechanism by which a receptor molecule (the glycopeptide…”
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Hydrogen bond‐Driven Self–Assembly between Amidinium Cations and Carboxylate Anions: A Combined Molecular Dynamics, NMR Spectroscopy, and Single Crystal X‐ray Diffraction Study
Published in Chemistry, an Asian journal (04-07-2017)“…A combination of molecular dynamics (MD), NMR spectroscopy, and single crystal X‐ray diffraction (SCXRD) techniques was used to probe the self–assembly of…”
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Conserved FimH mutations in the global Escherichia coli ST131 multi-drug resistant lineage weaken interdomain interactions and alter adhesin function
Published in Computational and structural biotechnology journal (01-01-2022)“…[Display omitted] The binding of the type 1 fimbrial adhesin FimH to mannosylated receptors is allosterically regulated to enhance the fitness of uropathogenic…”
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Membrane cholesterol regulates inhibition and substrate transport by the glycine transporter, GlyT2
Published in Life science alliance (01-04-2023)“…Membrane cholesterol binds to and modulates the function of various SLC6 neurotransmitter transporters, including stabilizing the outward-facing conformation…”
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Investigating the lipid fingerprint of SLC6 neurotransmitter transporters: a comparison of dDAT, hDAT, hSERT, and GlyT2
Published in BBA advances (01-01-2021)“…•Lipid fingerprints are comprised of similar lipid classes•Sites of specific lipid contacts, including CHOL, varies between transporters•Changes in lipid…”
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Structural arrangement of the transmission interface in the antigen ABC transport complex TAP
Published in Proceedings of the National Academy of Sciences - PNAS (07-04-2009)“…The transporter associated with antigen processing (TAP) represents a focal point in the immune recognition of virally or malignantly transformed cells by…”
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Effect of the Force Field on Molecular Dynamics Simulations of the Multidrug Efflux Protein P‑Glycoprotein
Published in Journal of chemical theory and computation (12-10-2021)“…Molecular dynamics (MD) simulations have been used extensively to study P-glycoprotein (P-gp), a flexible multidrug transporter that is a key player in the…”
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The effects of oxidised phospholipids and cholesterol on the biophysical properties of POPC bilayers
Published in Biochimica et biophysica acta. Biomembranes (01-01-2019)“…Oxidation of unsaturated membrane phospholipids by oxidative stress is associated with inflammation, infection, numerous diseases and neurodegenerative…”
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Main‐chain Macromolecular Hydrazone Photoswitches
Published in Angewandte Chemie International Edition (22-01-2024)“…Hydrazones—consisting of a dynamic imine bond and an acidic NH proton—have recently emerged as versatile photoswitches underpinned by their ability to form…”
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