Do multiheme cytochromes containing close-packed heme groups have a band structure formed from the heme π and π* orbitals?
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F24%3A43908495" target="_blank" >RIV/60076658:12310/24:43908495 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S2451910324001170?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2451910324001170?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.coelec.2024.101556" target="_blank" >10.1016/j.coelec.2024.101556</a>
Alternative languages
Result language
angličtina
Original language name
Do multiheme cytochromes containing close-packed heme groups have a band structure formed from the heme π and π* orbitals?
Original language description
Multiheme cytochromes (MHCs) are bacterial electron-transfer proteins. We show from optical spectra and calculations that some of these cytochromes probably contain occupied and unoccupied bands formed from heme Tc and Tc* orbitals that span the protein. In the fully oxidised proteins, the unoccupied Tc*-bands are energetically above the redox-active frontier orbitals, which according to NMR data and calculations, are formed of Fe3+ t2g and porphyrin Tc-orbitals. These orbitals on different hemes are electronically coupled according to EPR data and calculations, but only weakly so. We suggest a role for the heme bands in the electronic conductivity of single MHCs in bioelectronic junctions that is distinct from the role of the redox-active Fe3+ t2g and porphyrin Tc-orbitals in physiological electron transfer.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10403 - Physical chemistry
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Current Opinion in Electrochemistry
ISSN
2451-9103
e-ISSN
2451-9103
Volume of the periodical
47
Issue of the periodical within the volume
OCT 2024
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
9
Pages from-to
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UT code for WoS article
001269446800001
EID of the result in the Scopus database
2-s2.0-85198273206