Increasing the simulation temperature from 310 K to 380 K should in principle favor structural transitions, possibly leading to partially or completely unfolded conformations more prone to aggregation than the native one.
The unfolding propensity ranges from 0 1, where 0 is the most thermodynamically stabile protein, 0.5 is folding-unfolding equilibrium, and 1 is a completely unfolded protein.
Well said & more completely explained.
The use of NMR is particularly useful for the characterization of proteins that occur in vivo as largely or completely unfolded, or that can become unfolded under extreme solution conditions or upon chemical manipulations.
We use replica exchange molecular dynamics simulations of the AMBER94 atomic detail model of the protein explicitly solvated by water, starting from a completely unfolded configuration.
The force extension patterns exhibit features that are compatible with the existence of at least one intermediate between the folded and the completely unfolded conformation.
For this protein, within a few hundreds of nanoseconds, a broad range of conformations is explored, including nearly native ones, initiating the simulation from a completely unfolded conformation.
The absence of domains III, IV and V does not mean that these domains are completely unfolded.
The dimension number that makes the adjacent phase points completely unfolded is chosen as the final embedding dimension m.
However, chaperones allow the completely unfolded Luciferase to refold quickly in AFM experiments, strongly suggesting that chaperones are able to sequester non-natively contacting residues.
A partially or completely unfolded anchor (see Fig. 9) creates a major risk for dislodgement, potentially leading to a complete migration.
