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We report on recent progress in the biophysics of knotting—the formation, characterization, and dynamics of knots in various biophysical contexts. Keyword(s): DNA , entanglement , polymer physics , proteins , topoisomerase
1 sty 2015 · Knotted proteins have their native structures arranged in the form of an open knot. In the last ten years researchers have been making significant efforts to reveal their folding mechanism and understand which functional advantage(s) knots convey to their carriers.
9 wrz 2017 · Here we give an overview of synthetic strategies towards molecular knots and outline the principles of knot, braid, and tangle theory appropriate to chemistry and molecular structure. Keywords: interlocked molecules, molecular knots, supramolecular chemistry, template synthesis, topology. Go to: 1. Introduction.
20 sie 2015 · This review highlights some of the molecular knotted structures discovered in biology and chemistry. It focuses on the structural and mechanistic studies into which and how knots are formed, and summarises the recent developments made towards understanding their properties and potential functions.
simplest nontrivial knot. A provisional mathematical definition of a knot is: • One-dimensional curve traced in space. • Begins and ends at the same point. • Does not intersect itself. Although the mathematician's idea of a knot differs somewhat from that of a boy scout or sailor, they might ask similar questions.
26 sie 2020 · The knot topology affects the chemical properties of the strand: whereas the tighter 52 knot can bind two different metal ions simultaneously, the looser 31 isomer can bind only either one...
20 sie 2015 · In this review, we provide an overview on the various molecular knots found in naturally occurring biological systems (DNA, RNA and proteins), and those created by synthetic chemists.
