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Reference - PMID:11248251 - Involvement of mitochondrial ferredoxin and Cox15p in hydroxylation of heme O.

Reference summary

PubMed ID
PMID:11248251
Title
Involvement of mitochondrial ferredoxin and Cox15p in hydroxylation of heme O.
Authors
Barros MH, Carlson CG, Glerum DM, Tzagoloff A
Citation
FEBS Lett 2001 Mar 09;492(1-2):133-8
Publication year
2001
Abstract
Cox15p is essential for the biogenesis of cytochrome oxidase [Glerum et al., J. Biol. Chem. 272 (1997) 19088-19094]. We show here that cox15 mutants are blocked in heme A but not heme O biosynthesis. In Schizosaccharomyces pombe COX15 is fused to YAH1, the yeast gene for mitochondrial ferredoxin (adrenodoxin). A fusion of Cox15p and Yah1p in Saccharomyces cerevisiae rescued both cox15 and yah1 null mutants. This suggests that Yah1p functions in concert with Cox15p. We propose that Cox15p functions together with Yah1p and its putative reductase (Arh1p) in the hydroxylation of heme O.

Annotation

GO biological process

GO:0006784 - heme A biosynthetic process

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GO cellular component

GO:0005743 - mitochondrial inner membrane

Genes:

GO:0005759 - mitochondrial matrix

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GO molecular function

GO:0120547 - heme A synthase activity

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Single locus phenotype

FYPO:0008145 - decreased level of heme O in cell

Genes:

Genotypes:

FYPO:0008143 - heme A absent from cell

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Genotypes:

FYPO:0008144 - heme O absent from cell

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Genotypes: