Bovine Serum Albumin Catalysed Hydrogen and Deuterium Evolution at Mercury Electrodes
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081707%3A_____%2F20%3A00539351" target="_blank" >RIV/68081707:_____/20:00539351 - isvavai.cz</a>
Výsledek na webu
<a href="https://chemistry-europe.onlinelibrary.wiley.com/doi/full/10.1002/cplu.202000348" target="_blank" >https://chemistry-europe.onlinelibrary.wiley.com/doi/full/10.1002/cplu.202000348</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/cplu.202000348" target="_blank" >10.1002/cplu.202000348</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Bovine Serum Albumin Catalysed Hydrogen and Deuterium Evolution at Mercury Electrodes
Popis výsledku v původním jazyce
The hydrogen evolution reaction (HER), catalysed by proteins at mercury electrodes and reflected in chronopotentiometric stripping peak H, provides a label-free and reagentless analytical technique that is sensitive to protein structure. Here we show how the kinetic isotope effect affected the HER catalysed by the protein bovine serum albumin (BSA). We found that the deuteron bond, which is stronger than that of a proton, contributed to less effective transport of deuterons mediated by BSA at the Hg|D2O interface, and enhanced structural stability of the surface-attached native BSA in D2O solution. A structural transition was also observed in the surface-attached urea-denatured BSA, and is probably due to the destabilisation of some secondary structural remnants retained by the 17 SS-bonds. Because the catalytically active groups involved in proton or deuteron transfer in native proteins are often exposed towards solutions and their protons exchange almost instantly, no signs of H/D exchange were observed in native BSA using peak H under the given conditions.
Název v anglickém jazyce
Bovine Serum Albumin Catalysed Hydrogen and Deuterium Evolution at Mercury Electrodes
Popis výsledku anglicky
The hydrogen evolution reaction (HER), catalysed by proteins at mercury electrodes and reflected in chronopotentiometric stripping peak H, provides a label-free and reagentless analytical technique that is sensitive to protein structure. Here we show how the kinetic isotope effect affected the HER catalysed by the protein bovine serum albumin (BSA). We found that the deuteron bond, which is stronger than that of a proton, contributed to less effective transport of deuterons mediated by BSA at the Hg|D2O interface, and enhanced structural stability of the surface-attached native BSA in D2O solution. A structural transition was also observed in the surface-attached urea-denatured BSA, and is probably due to the destabilisation of some secondary structural remnants retained by the 17 SS-bonds. Because the catalytically active groups involved in proton or deuteron transfer in native proteins are often exposed towards solutions and their protons exchange almost instantly, no signs of H/D exchange were observed in native BSA using peak H under the given conditions.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)
Návaznosti výsledku
Projekt
<a href="/cs/project/GA18-18154S" target="_blank" >GA18-18154S: Nové nástroje elektrochemické analýzy proteinových interakcí s nukleovými kyselinami a proteiny nevyžadující značení</a><br>
Návaznosti
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2020
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
ChemPlusChem
ISSN
2192-6506
e-ISSN
—
Svazek periodika
85
Číslo periodika v rámci svazku
7
Stát vydavatele periodika
DE - Spolková republika Německo
Počet stran výsledku
6
Strana od-do
1596-1601
Kód UT WoS článku
000555737600027
EID výsledku v databázi Scopus
2-s2.0-85088821654