While this approach has not yet matured to the point where we can predict the native conformation of any polypeptide chain in silico, it has been able to highlight, amongst others, the specific residues that are responsible for nucleation, pathway malleability, kinetic intermediates, chain knotting, internal friction and Paracelsus switches.
He named a collection of piles of metal chains knotted together Calamity Chain; an elaborate line of pearl and sea glass necklaces is called Nouveau Raj.
The time scale less than 100 s observed in the coil-to-globule transition is too short to support a suggested high chain-knotting density inside the globule.
Specifically, we present simulations of osmotic effects of molecular dimers, worm-like chain polymer knots, and a basic model of a molecular motor immersed in fluid subject to a hydrodynamic load force.
In the unfolded chain, the tightened knot is reduced to 17 amino acids, resulting in apparent shortening of the polypeptide chain by 6.2 nm.
Haft-Candell assigns a single motif to each sculpture — wave, arch, chain, eye, weave, knot, braid — and repeats it across the surface, carving away the clay around it in the manner of a woodcut.
By visual inspection it looks as if this chain contains a knot, but that is not the case and Knotfind correctly reports this model to be unknotted.
It is very difficult to detect a slip-knot, and the Knotfind algorithm will simply report the polypeptide chain to be knot-free.
Small, weldless chain types include knotted chain, stamped-link chain, bead chain, and jewelry chain; these find use in electric fixtures, key chains, jewelry, and other small articles.
