The Redox Potential Measurements for Heme Moieties in Variants of D-Fructose Dehydrogenase Based on Mediator-assisted Potentiometric Titration
In: Electrochemistry, Jg. 89 (2021), Heft 4, S. 337-339
Online
academicJournal
Zugriff:
The effect of mutation on the redox potentials (E°′) of the heme moieties in the variants of d-fructose dehydrogenase (FDH) was investigated by mediated spectroelectrochemical titrations. The replacement of the axial ligand of heme from methionine to glutamine changes the E°′ value more negatively than that of the corresponding heme moiety in the recombinant (native) FDH (rFDH). The determined E°′ values of non-targeted heme moieties in the variants were also shifted in a negative direction from that in rFDH. Thus, enzyme modification changes E°′ of the heme moieties in unmodified protein regions.
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The Redox Potential Measurements for Heme Moieties in Variants of D-Fructose Dehydrogenase Based on Mediator-assisted Potentiometric Titration
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Autor/in / Beteiligte Person: | Yohei, SUZUKI ; Keisei, SOWA ; Yuki, KITAZUMI ; Osamu, SHIRAI |
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Zeitschrift: | Electrochemistry, Jg. 89 (2021), Heft 4, S. 337-339 |
Veröffentlichung: | The Electrochemical Society of Japan, 2021 |
Medientyp: | academicJournal |
ISSN: | 2186-2451 (print) |
DOI: | 10.5796/electrochemistry.21-00044 |
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