Results 21 to 30 of about 12,847 (298)
Proline Isomerization: From the Chemistry and Biology to Therapeutic Opportunities
Proline isomerization, the process of interconversion between the cis- and trans-forms of proline, is an important and unique post-translational modification that can affect protein folding and conformations, and ultimately regulate protein functions and
Deepti Gurung +5 more
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Peptidyl-prolyl isomerases : A full cast of critical actors in cardiovascular diseases [PDF]
Peptidyl-prolyl cis-trans-isomerases are a highly conserved family of immunophilins. The three peptidyl-prolyl cis-trans-isomerase subfamilies are cyclophilins, FK-506-binding proteins, and parvulins. Peptidyl-prolyl cis-trans-isomerases are expressed in
G.L. Perrucci +5 more
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Rhodopsin is formed by the condensation of opsin with a cis isomer of retinene, called neo-b. The bleaching of rhodopsin releases all-trans retinene which must be isomerized back to neo-b in order for rhodopsin to regenerate. Both retinene isomers are in equilibrium with the corresponding isomers of vitamin A, through the alcohol dehydrogenase system.
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A desired product cannot be obtained at higher concentration than its equilibrium concentration when isomerases are used for biotransformation. Here, the authors engineer in vivo oxidoreductive reactions in yeast to overcome the equilibrium limitation of
Jing-Jing Liu +7 more
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Vascular thiol isomerases [PDF]
AbstractThiol isomerases are multifunctional enzymes that influence protein structure via their oxidoreductase, isomerase, and chaperone activities. These enzymes localize at high concentrations in the endoplasmic reticulum of all eukaryotic cells where they serve an essential function in folding nascent proteins.
Robert, Flaumenhaft, Bruce, Furie
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Rare arginine codons AGA and AGG affect the heterologous expression of proteins in Eschericha coli. The tRNAs necessary for protein synthesis are scarce in E. coli strain BL21(DE3) pLysS and plentiful in strain BL21(DE3) CodonPlus −RIL.
Beatriz Aguirre-López +4 more
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Introduction to Peptidyl-Prolyl cis/trans Isomerase (PPIase) Series
About 30 years after the discovery of peptidyl-prolyl cis/trans isomerases (PPIases), research on this group of proteins has become somewhat calmer than it used to be, but it still generates lots of interest [...]
Andrzej Galat
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Cancer stem cells (CSCs) are a great challenge in the fight against cancer because these self-renewing tumorigenic cell fractions are thought to be responsible for metastasis dissemination and cases of tumor recurrence. In comparison with non-stem cancer
Alexander Kabakov +2 more
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Three unrelated and unexpected amino acids determine the susceptibility of the interface cysteine to a sulfhydryl reagent in the triosephosphate isomerases of two trypanosomes. [PDF]
Proteins with great sequence similarity usually have similar structure, function and other physicochemical properties. But in many cases, one or more of the physicochemical or functional characteristics differ, sometimes very considerably, among these ...
Selma Díaz-Mazariegos +2 more
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Artificial disulfide isomerases and uses thereof [PDF]
The present invention provides artificial enzymes comprising, e.g., an N-terminal domain derived from E. coli FkpA that allows for dimerization and provides a substrate binding region, and a C-terminal thioredoxin domain derived from E.
Georgiou, George M., Segatori, Laura
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