منابع مشابه
Microwave-enhanced folding and denaturation of globular proteins.
It is shown that microwave irradiation can affect the kinetics of the folding process of some globular proteins, especially beta-lactoglobulin. At low temperature the folding from the cold denatured phase of the protein is enhanced, while at a higher temperature the denaturation of the protein from its folded state is enhanced. In the latter case, a negative temperature gradient is needed for t...
متن کاملFinite size effects on thermal denaturation of globular proteins.
Finite size effects on the cooperative thermal denaturation of proteins are considered. A dimensionless measure of cooperativity, Omegac, scales as Nzeta, where N is the number of amino acids. Surprisingly, we find that zeta is universal with zeta=1+gamma, where the exponent gamma characterizes the divergence of the susceptibility for a self-avoiding walk. Our lattice model simulations and expe...
متن کاملFolding kinetics of proteins and cold denaturation.
Folding kinetics of a lattice model of protein is studied. It uses the random energy model for the intrachain couplings and a temperature dependent free energy of solvation derived from a realistic hydration model of apolar solutes. The folding times are computed using Monte Carlo simulations in the region of the phase diagram where the chain occurs in the native structure. These folding times ...
متن کاملInterfacial Rheology of Globular Proteins
Protein-surfactant mixtures appear in many industrial and biological applications. Indeed, a fluid as vital as blood contains a mixture of serum albumin proteins with various other smaller surface-active components. Proteins and other surface active molecules are often adsorbed at an air-liquid or liquid-liquid interface due to favorable thermodynamics, and these interfaces play a role in such ...
متن کاملNature of Heat Denaturation of Proteins
Chick and Martin (1) have shown that the heat coagulation of proteins consists of two distinct processes; tiiz., (a) denaturation, the alteration of the protein under the influence of heat, and (b) agglutination, the separation of the altered protein in a particulate form. Agglutination, in which hydrogen ion concentration and electrolyte contents play important roles (2), is now a fairly well ...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1970
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(18)62889-3