| Relationship between cardiolipin content and cytochrome c oxidase activity of cytochrome aa3 in Paracoccus denitrificans. | |
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MedLine Citation:
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PMID: 1332723 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Using cultivation at different oxygen tensions, the molar ratio of cardiolipin to haem a in cells of Paracoccus denitrificans was varied systematically from 30 to 300. The molecular activity of cytochrome aa3 (with N, N, N', N'-tetramethyl-p-phenylenediamine as substrate) remained unchanged in this interval, this ruling out any regulatory effect of physiological cardiolipin levels on the terminal oxidase. Titration of anaerobically grown cells with cyanide indicated the presence of cytochrome aa3 which accounted for about 1/4 of the total electron flow from TMPD to oxygen. |
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Authors:
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P Kaplan; I Kucera |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Biochemistry international Volume: 28 ISSN: 0158-5231 ISO Abbreviation: Biochem. Int. Publication Date: 1992 Oct |
Date Detail:
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Created Date: 1992-12-23 Completed Date: 1992-12-23 Revised Date: 2003-11-14 |
Medline Journal Info:
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Nlm Unique ID: 8100311 Medline TA: Biochem Int Country: AUSTRALIA |
Other Details:
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Languages: eng Pagination: 137-42 Citation Subset: IM |
Affiliation:
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Department of Biochemistry, Faculty of Medicine, Masaryk University, Brno, Czechoslovakia. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Aerobiosis Anaerobiosis Cardiolipins / metabolism* Electron Transport Electron Transport Complex IV / metabolism* Heme / metabolism Oxygen / metabolism Paracoccus denitrificans / growth & development, metabolism* Substrate Specificity Tetramethylphenylenediamine |
| Chemical | |
Reg. No./Substance:
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0/Cardiolipins; 14875-96-8/Heme; 27215-51-6/Tetramethylphenylenediamine; 7782-44-7/Oxygen; EC 1.9.3.1/Electron Transport Complex IV |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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