Section 19
Chapter 18,074

Proton pump coupled to cytochrome c oxidase in the cyanobacterium Anacystis nidulans

Peschek, G.A.

Journal of Bacteriology 153(1): 539-542


ISSN/ISBN: 0021-9193
PMID: 6294060
Accession: 018073769

Intact spheroplasts of the cyanobacterium Anacystis nidulans were found to oxidize various exogenous c-type cytochromes with concomitant proton extrusion. In the coupled state, H+/e stoichiometries close to 1 were measured, regardless of absolute reaction rates. It is concluded that the proton translocation observed is an intrinsic property of the cytoplasmic membrane-bound cytochrome c oxidase of A. nidulans.

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