Human members of the SCO1 gene family: complementation analysis in yeast and intracellular localization

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

  • TUD Dresden University of Technology

Abstract

Cytochrome c oxidase is a multiprotein complex in the mitochondrial membrane whose biogenesis requires a number of proteins besides the structural subunits. Several yeast proteins as well as a human disease-related protein have been reported which are involved in cytochrome c oxidase assembly. The S. cerevisiae Sco1p protein has been implicated in the transfer of copper to cytochrome c oxidase subunits Cox1p and/or Cox2p. Here we report on the complementation behavior in yeast of two recently identified ScSco1p homologs of chromosome 17 and chromosome 22 from human. When allotropically expressed in yeast, both genes fail to complement the lack of the ScSCO1 gene. However, a chimera of the N-terminal half of ScSco1p and the C-terminal half of the chromosome 17 homolog does substitute for the ScSco1p function. Interestingly, the respective chimera with the human homolog of chromosome 22 is not able to complement. Expression of EGFP fusions in HeLa cells shows that both human ScSco1p homologs are located in the mitochondria of human cells. (C) 1999 Federation of European Biochemical Societies.

Details

Original languageEnglish
Pages (from-to)65-70
Number of pages6
JournalFEBS letters
Volume447
Issue number1
Publication statusPublished - 19 Mar 1999
Peer-reviewedYes

External IDs

Scopus 0033051443

Keywords

Sustainable Development Goals

Keywords

  • Sco1p, copper, COX, mitochondrium, EGFP fuslon, human, MITOCHONDRIAL COPPER RECRUITMENT, OXIDASE SUBUNIT-I, SACCHAROMYCES-CEREVISIAE, FUNCTIONAL EXPRESSION, PROTEIN, ACCUMULATION, MEMBRANE, NUCLEAR, DNA, IDENTIFICATION