scholarly journals Tryptophan or tyrosine? On the nature of the amino acid radical formed following hydrogen peroxide treatment of cytochrome c oxidase

2004 ◽  
Vol 1655 ◽  
pp. 372-380 ◽  
Author(s):  
Dimitri A. Svistunenko ◽  
Mike T. Wilson ◽  
Chris E. Cooper
Keyword(s):  
Hydrogen Peroxide ◽  
Amino Acid ◽  
Cytochrome C ◽  
Cytochrome C Oxidase ◽  
Acid Radical ◽  
Hydrogen Peroxide Treatment

scholarly journals Cytochrome c Oxidase Assembly in Primates is Sensitive to Small Evolutionary Variations in Amino Acid Sequence

2000 ◽  
Vol 17 (10) ◽  
pp. 1508-1519 ◽  
Author(s):  
Antoni Barrientos ◽  
Stefan Müller ◽  
Runu Dey ◽  
Johannes Wienberg ◽  
Carlos T. Moraes
Keyword(s):  
Amino Acid ◽  
Cytochrome C ◽  
Amino Acid Sequence ◽  
Cytochrome C Oxidase

Isolation and characterization of the pea cytochrome c oxidase Vb gene

Genome ◽  
2006 ◽  
Vol 49 (11) ◽  
pp. 1481-1489 ◽  
Author(s):  
Nakao Kubo ◽  
Shin-ichi Arimura ◽  
Nobuhiro Tsutsumi ◽  
Koh-ichi Kadowaki ◽  
Masashi Hirai
Keyword(s):  
Amino Acid ◽  
Cytochrome C ◽  
Cytochrome C Oxidase ◽  
Fluorescent Proteins ◽  
Amino Acid Sequences ◽  
Homology Search ◽  
Coding Region ◽  
Angiosperm Evolution ◽  
Isolation And Characterization ◽  
Duplication Events

Three copies of the gene that encodes cytochrome c oxidase subunit Vb were isolated from the pea (PscoxVb-1, PscoxVb-2, and PscoxVb-3). Northern Blot and reverse transcriptase-PCR analyses suggest that all 3 genes are transcribed in the pea. Each pea coxVb gene has an N-terminal extended sequence that can encode a mitochondrial targeting signal, called a presequence. The localization of green fluorescent proteins fused with the presequence strongly suggests the targeting of pea COXVb proteins to mitochondria. Each pea coxVb gene has 5 intron sites within the coding region. These are similar to Arabidopsis and rice, although the intron lengths vary greatly. A phylogenetic analysis of coxVb suggests the occurrence of gene duplication events during angiosperm evolution. In particular, 2 duplication events might have occurred in legumes, grasses, and Solanaceae. A comparison of amino acid sequences in COXVb or its counterpart shows the conservation of several amino acids within a zinc finger motif. Interestingly, a homology search analysis showed that bacterial protein COG4391 and a mitochondrial complex I 13 kDa subunit also have similar amino acid compositions around this motif. Such similarity might reflect evolutionary relationships among the 3 proteins.

Cytochrome c oxidase binding of hydrogen peroxide

Biochemistry ◽  
1982 ◽  
Vol 21 (11) ◽  
pp. 2661-2666 ◽  
Author(s):  
David Bickar ◽  
Joseph Bonaventura ◽  
Celia Bonaventura
Keyword(s):  
Hydrogen Peroxide ◽  
Cytochrome C ◽  
Cytochrome C Oxidase

scholarly journals Rapid Freeze-quench Trapping Of Intermediates In The Reaction Of Cytochrome c Oxidase With Hydrogen Peroxide

2009 ◽  
Vol 96 (3) ◽  
pp. 565a
Author(s):  
Michelle A. Yu ◽  
Gary J. Gerfen ◽  
Syun-Ru Yeh ◽  
Denis L. Rousseau
Keyword(s):  
Hydrogen Peroxide ◽  
Cytochrome C ◽  
Cytochrome C Oxidase
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