Medlennyǐ spektral'nyǐ sdvig tsitokhrom c-oksidazy, vyzyvaemyǐ EDTA i o-fenantrolinom.

Translated title of the contribution: A slow spectral shift of cytochrome c oxidase induced by EDTA and o-phenanthroline

A. A. Konstantinov, T. V. Vygodina, A. P. Musatov

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Low concentrations of EDTA (in the presence of Ca2+ excess) or o-phenanthroline cause a blue shift of the oxidized cytochrome oxidase Soret absorption band. The effect develops within approximately 2 hours and does not depend on EDTA concentration provided the complexon is in a molar excess over the enzyme. It is suggested that the enzyme spectral characteristics depend on the presence of some tightly bound heavy metal ions which can stabilize one of the spectrally distinct conformations of cytochrome c oxidase.

Translated title of the contributionA slow spectral shift of cytochrome c oxidase induced by EDTA and o-phenanthroline
Original languageRussian
Pages (from-to)2065-2067
Number of pages3
JournalBiokhimiya
Volume53
Issue number12
StatePublished - Dec 1988
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)

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