Search Results - "Komarov, Alexander G."
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Semisynthetic K⁺ channels show that the constricted conformation of the selectivity filter is not the C-type inactivated state
Published in Proceedings of the National Academy of Sciences - PNAS (24-09-2013)“…C-type inactivation of K ⁺ channels plays a key role in modulating cellular excitability. During C-type inactivation, the selectivity filter of a K ⁺ channel…”
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Using protein backbone mutagenesis to dissect the link between ion occupancy and C-type inactivation in K⁺ channels
Published in Proceedings of the National Academy of Sciences - PNAS (29-10-2013)“…K ⁺ channels distinguish K ⁺ from Na ⁺ in the selectivity filter, which consists of four ion-binding sites (S1–S4, extracellular to intracellular) that are…”
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The Physiological Properties of a Novel Family of VDAC-Like Proteins from Drosophila melanogaster
Published in Biophysical journal (2004)“…VDAC, a major protein of the mitochondrial outer membrane, forms voltage-dependent, anion-selective channels permeable to most metabolites. Although multiple…”
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Modular Strategy for the Semisynthesis of a K+ Channel: Investigating Interactions of the Pore Helix
Published in ACS chemical biology (18-12-2009)“…Chemical synthesis is a powerful method for precise modification of the structural and electronic properties of proteins. The difficulties in the synthesis and…”
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Rectification Properties and pH-Dependent Selectivity of Meningococcal Class 1 Porin
Published in Biophysical journal (15-02-2008)“…We studied the current rectification properties and selectivity of class 1 porin (PorA) from Neisseria meningitidis (strain H44/76 Δ3Δ4) reconstituted in…”
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New Insights into the Mechanism of Permeation through Large Channels
Published in Biophysical journal (01-12-2005)“…The mitochondrial channel, VDAC, regulates metabolite flux across the outer membrane. The open conformation has a higher conductance and anionic selectivity,…”
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Engineering K+ channels using semisynthesis
Published in Methods in molecular biology (Clifton, N.J.) (2013)“…Potassium channels conduct K(+) ions selectively and at very high rates. Central to the function of K(+) channels is a structural unit called the selectivity…”
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Protein Backbone Mutagenesis Reveals a Novel Link between Ion Occupancy and C-type Inactivation in K+ Channels
Published in Biophysical journal (28-01-2014)Get full text
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Semisynthesis of K+ channels
Published in Methods in enzymology (2009)“…The ability to selectively conduct K(+) ions is central to the function of K(+) channels. Selection for K(+) and rejection of Na(+) takes place in a conserved…”
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A modular strategy for the semi-synthesis of a K+ channel: Investigating interactions of the pore helix
Published in ACS chemical biology (18-12-2009)“…Chemical synthesis is a powerful method for precise modification of the structural and electronic properties of proteins. The difficulties in the synthesis and…”
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Mitochondrial VDAC and bacterial PorA /C1: Ion permeation and selectivity
Published 01-01-2005“…VDAC and PorA/C1 are large diameter channels with properties reminiscent of those found in narrow channels. VDAC, located in the mitochondrial outer membrane,…”
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