Characteristic Time Of Folding
Mostrando 1-11 de 11 artigos, teses e dissertações.
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1. Studying energy absorption in tapered thick walled tubes
In many engineering structures different energy absorption systems may be used to improve crashworthiness capability of the system and to control damages that may occur in a system during an accident. Therefore, extensive research has been done on the energy-absorbing cells. In this paper, energy absorption in tapered thick walled tubes has been investigated
Lat. Am. j. solids struct.. Publicado em: 2015-01
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2. O papel do código estereoquímico e das flutuações térmicas locais no processo de folding de proteínas / The role of stereochemical code and local thermal fluctuation in the protein folding process
O problema do folding de proteínas tem sido investigado intensamente há mais de sessenta anos. Entretanto ainda não é encontrado na literatura um modelo que seja capaz de explicar plenamente qual é o mecanismo responsável pelo processo de folding. Neste contexto, a presente tese de doutorado é uma proposta minimalista para investigar o papel de um có
Publicado em: 2011
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3. Nonextensive statistical mechanics applied to protein folding problem: kinetics aspects
A reduced (stereo-chemical) model is employed to study kinetic aspects of globular protein folding process, by Monte Carlo simulation. Nonextensive statistical approach is used: transition probability p i j between configurations i → j is given by p i j =[1 +(1 - q)ΔGi j/kB T ]1/(1-q), where q is the nonextensive (Tsallis) parameter. The system model cons
Brazilian Journal of Physics. Publicado em: 2009-08
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4. Petrogenese das intrusões graniticas compostas de Teofilandia e Barrocas, Greenstone Belt do Rio Itapicuru, Bahia, Brasil
The Rio Itapicuru Greenstone Belt (RIGB) is a Paleoproteozoic sequence situated in the northern portion of the São Francisco Craton, Bahia state, Brazil. Overlying a basement consisting of gnaisse and migmatites, this volcanic-sedimentary belt is intruded by several granitoid intrusions of different chemical compositions. Two of the most important intrusive
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/08/2002
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5. Aspectos especiais e temporais do problema do enovelamento protÃico
The manner in which a protein folds from a random coil into a unique native state in a relatively short time is one of the fundamental puzzles of molecular biophysics. It is well accepted that a unique native three-dimensional structure, characteristic of each protein and determined by the sequence of its amino-acids, dictates protein functions. In this Thes
Publicado em: 2002
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6. Desnaturação e reenovelamento da frutalina, uma lectina ligante de D galactose / Folding and unfolding of frutalin lectin
Our current understanding of the protein folding mechanism is the result of intense study employing biophysical, biochemical and theoretical methods. "In vitro", the initial state of the protein in this puzzle is its unfolded form. In the present work we have studied the refolding, after thermal denaturation, of the glycoprotein frutalin, a member of the lec
Publicado em: 1998
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7. Proteins unfold in steps
I present results from an experiment on the dynamics of folding of a globular protein (bovine serum albumin). Employing a micro-mechanical technique, I perform the measurements on very few molecules (1–100). I observed a sequence of steps in time for both unfolding and refolding. The overall characteristic time of the process is thus built up of waiting ti
The National Academy of Sciences of the USA.
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8. Topological determinants of protein folding
The folding of many small proteins is kinetically a two-state process that represents overcoming the major free-energy barrier. A kinetic characteristic of a conformation, its probability to descend to the native state domain in the amount of time that represents a small fraction of total folding time, has been introduced to determine to which side of the fr
National Academy of Sciences.
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9. Thermodynamics of T cell receptor binding to peptide–MHC: Evidence for a general mechanism of molecular scanning
Antigen-dependent activation of T lymphocytes requires T cell receptor (TCR)-mediated recognition of specific peptides, together with the MHC molecules to which they are bound. To achieve this recognition in a reasonable time frame, the TCR must scan and discriminate rapidly between thousands of MHC molecules differing from each other only in their bound pep
The National Academy of Sciences.
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10. Fine Structure of Sporulation in Bacillus cereus Grown in a Chemically Defined Medium
Ellar, D. J. (Syracuse University, Syracuse, N.Y.), and D. G. Lundgren. Fine structure of sporulation in Bacillus cereus grown in a chemically defined medium. J. Bacteriol. 92:1748–1764. 1966.—A study was made of the fine structure of sporulating cells of Bacillus cereus grown in a chemically defined medium. The developmental stages of sporulation occurr
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11. Lipid interaction differentiates the constitutive and stress-induced heat shock proteins Hsc70 and Hsp70
Heat shock proteins play a major role in the process of protein folding, and they have been termed molecular chaperones. Two members of the Hsp70 family, Hsc70 and Hsp70, have a high degree of sequence homology. But they differ in their expression pattern. Hsc70 is constitutively expressed, whereas Hsp70 is stress inducible. These 2 proteins are localized in
Cell Stress Society International.