Operation of the cbb3-type terminal oxidase in Azotobacter vinelandiiстатья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:A part of the gene encoding cbb3-type cytochrome oxidase CcoN subunit was cloned from Azotobacter vinelandii and a mutant strain of this bacterium with disrupted ccoN gene was constructed. In contrast to the wild type strain, this one is unable to oxidize cytochromes c4 and c5. Thus, the A. vinelandii respiratory chain is shown to contain cbb3-type cytochrome c oxidase. It is also shown that the activity of this enzyme is not necessary for diazotrophic growth of A. vinelandii at high oxygen concentrations.