Reference: Cumsky MG, et al. (1983) Nuclear genes for mitochondrial proteins. Identification and isolation of a structural gene for subunit V of yeast cytochrome c oxidase. J Biol Chem 258(22):13418-21

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Abstract


The gene for yeast cytochrome c oxidase subunit V, COX5, has been isolated from a Saccharomyces cerevisiae DNA library by complementation of a cytochrome c oxidase subunit V mutant, JM28. One complementing plasmid, YEp13-511, with a DNA insert of 4.8 kilobase pairs, has been characterized in detail. This plasmid restores respiratory competency in JM28, results in increased cytochrome c oxidase activity and a new form of subunit V in JM28 mitochondria, and is capable of selecting mRNA for subunit V. These results indicate that YEp13-511 carries the COX5 gene and that the subunit V encoded by this plasmid gene is capable of entering the mitochondrion and assembling into a functional holocytochrome c oxidase.

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Journal Article | Research Support, Non-U.S. Gov't | Research Support, U.S. Gov't, P.H.S.
Authors
Cumsky MG, McEwen JE, Ko C, Poyton RO
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