نتایج جستجو برای: heteropolymer
تعداد نتایج: 296 فیلتر نتایج به سال:
We study random heteropolymer chain with gaussian distribution of kinds of monomers. The long-range correlations between kinds of monomers were introduce. The mean-field analysis of such heteropolymer indicates the existence of infinite energetic barrier between heteropolymer random coil and frozen states. Thus, the frozen state is kinetically unavailable for the random heteropolymer with power...
We develop a statistical mechanical theory for the free energy landscapes for complexes of double-stranded chain molecules. The theory is based on the generalized polymer graph, a graphical representation for the conformations of the complexes. We compute the partition functions by ‘‘dividing and conquering’’ on the generalized polymer graph: we decompose a graph into simple subunits, calculate...
A strategy is outlined for obtaining the free energy of a typical designed heteropolymer. The design procedure considers the probability that the target conformation is occupied in comparison with all the other conformations that could house the given sequence. Numerical calculations on lattice heteropolymer models are presented to illustrate the key physical principles.
Dynamics of heteropolymers in dilute solution: Effective equation of motion and relaxation spectrum.
The dynamics of a heteropolymer chain in solution is studied in the limit of long chain length. Using functional integral representation we derive an effective equation of motion, in which the heterogeneity of the chain manifests itself as a time-dependent excluded volume effect. At the mean field level, the heteropolymer chain is therefore dynamically equivalent to a ho-mopolymer chain with bo...
– We consider a simple model of a random heteropolymer chain that is known to undergo the freezing transition. We investigate the change in the elastic properties of the chain upon freezing. The elastic constants are evaluated and it is shown that they acquire a non-trivial contribution in the frozen phase. The goal of this letter is to investigate the elasticity of a random heteropolymer chain...
8 Heteropolymer Folding among the nite T landscape and the one at T = 0. One nds that the structure of the minima does not change much from T = 1 to T = 0, for example. The free energy landscape is quite stable. 16 is a SIMD parallel super-computer. In the tube version, the one we have used here, it has a theoretical speed of 6:5 GGops (and, as we will discuss , reaches an unusually high sustai...
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