Title : Oxidative stresses elevate the expression of cytochrome c peroxidase in Saccharomyces cerevisiae.

Pub. Date : 2003 Sep 8

PMID : 12957710






11 Functional Relationships(s)
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Sentence
Compound Name
Protein Name
Organism
1 Cytochrome c peroxidase (CcP) uses hydrogen peroxide as an electron acceptor to oxidize cytochrome c (Cc) in the mitochondrial intermembrane space. Hydrogen Peroxide cytochrome-c peroxidase Saccharomyces cerevisiae S288C
2 Cytochrome c peroxidase (CcP) uses hydrogen peroxide as an electron acceptor to oxidize cytochrome c (Cc) in the mitochondrial intermembrane space. Hydrogen Peroxide cytochrome-c peroxidase Saccharomyces cerevisiae S288C
3 Haploid yeast cells with the disrupted CCP1 gene were viable and able to grow in a medium containing lactic acid or glycerol as an energy source, indicating that CcP is not essential for both cell viability and respiration. Lactic Acid cytochrome-c peroxidase Saccharomyces cerevisiae S288C
4 Haploid yeast cells with the disrupted CCP1 gene were viable and able to grow in a medium containing lactic acid or glycerol as an energy source, indicating that CcP is not essential for both cell viability and respiration. Glycerol cytochrome-c peroxidase Saccharomyces cerevisiae S288C
5 However, CCP1-disrupted cells were more sensitive to H2O2 than wild-type cells. Hydrogen Peroxide cytochrome-c peroxidase Saccharomyces cerevisiae S288C
6 We found that expression of CCP1 gene increases under respiratory culture conditions and by treatments with H2O2. Hydrogen Peroxide cytochrome-c peroxidase Saccharomyces cerevisiae S288C
7 These results hint that the biological function of CcP is to reduce H2O2 generated during aerobic respiratory process. Hydrogen Peroxide cytochrome-c peroxidase Saccharomyces cerevisiae S288C
8 Moreover, expression of CCP1 gene increased by treatments with peroxynitrite, indicating that CcP may act as a peroxynitrite scavenger. Peroxynitrous Acid cytochrome-c peroxidase Saccharomyces cerevisiae S288C
9 Moreover, expression of CCP1 gene increased by treatments with peroxynitrite, indicating that CcP may act as a peroxynitrite scavenger. Peroxynitrous Acid cytochrome-c peroxidase Saccharomyces cerevisiae S288C
10 Moreover, expression of CCP1 gene increased by treatments with peroxynitrite, indicating that CcP may act as a peroxynitrite scavenger. Peroxynitrous Acid cytochrome-c peroxidase Saccharomyces cerevisiae S288C
11 Moreover, expression of CCP1 gene increased by treatments with peroxynitrite, indicating that CcP may act as a peroxynitrite scavenger. Peroxynitrous Acid cytochrome-c peroxidase Saccharomyces cerevisiae S288C