نتایج جستجو برای: protein refolding
تعداد نتایج: 1235541 فیلتر نتایج به سال:
The framework model of protein folding requires the hydrogen-bonded secondary structure to be formed early in folding (i.e. the formation of secondary structure precedes the tertiary structure) (Kim, P. S., and Baldwin, R. L. (1982) Annu. Rev. Biochem. 51, 459-489). To test the framework model directly the kinetics of bovine growth hormone (bGH) folding were compared utilizing two methods of de...
There is growing interest in understanding how the cellular environment affects protein folding mechanisms, but most spectroscopic methods for monitoring folding in vitro are unsuitable for experiments in vivo or in other complex mixtures. Monoclonal antibody binding represents a sensitive structural probe that can be detected against the background of other cellular components. A panel of anti...
Anionic tobacco peroxidase (TOP) is extremely active in chemiluminescence reaction of luminol oxidation without addition of enhancers and more stable than horseradish peroxidase under antibody conjugation conditions. In addition, recombinant TOP (rTOP) produced in Escherichia coli is known to be a perfect direct electron transfer catalyst on electrodes of various origin. These features make the...
The FK506 (tacrolimus)-binding protein (FKBP) type peptidyl-prolyl cis-trans isomerase (PPIase) in the hyperthermophilic archaeum Thermococcus sp. KS-1 was shown to be induced by temperature downshift to growth temperatures lower than the optimum. This PPIase (TcFKBP18) showed chaperone-like protein refolding activity in addition to PPIase activity in vitro. It refolded unfolded citrate synthas...
Molecular chaperones are typically either adenosine triphosphate (ATP) dependent or rely heavily on their ATP-dependent chaperone counterparts in order to promote protein folding. This presents a challenge to chaperones that are localized to ATP-deficient cellular compartments. Here we describe a mechanism by which the pH-regulated acid stress chaperone HdeA is capable of independently facilita...
The energetic profiles of a significant number of protein-DNA systems at 20 degrees C reveal that, despite comparable Gibbs free energies, association with the major groove is primarily an enthalpy-driven process, whereas binding to the minor groove is characterized by an unfavorable enthalpy that is compensated by favorable entropic contributions. These distinct energetic signatures for major ...
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