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COA2 protein (Saccharomyces cerevisiae) - STRING interaction network
"COA2" - Cytochrome oxidase assembly factor in Saccharomyces cerevisiae
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Predicted Interactions
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protein homology
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COA2Cytochrome oxidase assembly factor; null mutation results in respiratory deficiency with specific loss of cytochrome oxidase activity; functions downstream of assembly factors Mss51p and Coa1p and interacts with assembly factor Shy1p; Required for efficient assembly of cytochrome c oxidase in the mitochondrial inner membrane. Seems to be involved in the SHY1-mediated step of cytochrome c oxidase maturation. May aid in stabilizing an early COX1 intermediate containing the nuclear subunits COX5A and COX6 (68 aa)    
Predicted Functional Partners:
SHY1
Mitochondrial inner membrane protein required for assembly of cytochrome c oxidase (complex IV); associates with complex IV assembly intermediates and complex III/complex IV supercomplexes; similar to human SURF1 involved in Leigh Syndrome; Required for efficient assembly of cytochrome c oxidase in the mitochondrial inner membrane. Involved in a step that couples MSS51-COX14-dependent regulation of COX1 translation to early steps of cytochrome c oxidase assembly (389 aa)
       
 
  0.929
OMA1
Metalloendopeptidase of the mitochondrial inner membrane, involved in turnover of membrane-embedded proteins; member of a family of predicted membrane-bound metallopeptidases in prokaryotes and higher eukaryotes; Protease that is part of the quality control system in the inner membrane of mitochondria. Cleaves and thereby promotes the turnover of mistranslated or misfolded membrane proteins. Can cleave the misfolded multi-pass membrane protein OXA1 (345 aa)
       
 
  0.884
COX15
Protein required for the hydroxylation of heme O to form heme A, which is an essential prosthetic group for cytochrome c oxidase; Required for the assembly of yeast cytochrome oxidase. Involved in the biosynthesis of heme A and the initial step in this pathway, the hydroxylation of heme O, is thought to be catalyzed by a three-component mono-oxygenase consisting of COX15, ferredoxin and ferredoxin reductase (486 aa)
       
 
  0.845
YTA12
Component, with Afg3p, of the mitochondrial inner membrane m-AAA protease that mediates degradation of misfolded or unassembled proteins and is also required for correct assembly of mitochondrial enzyme complexes; Acts as a component of the m-AAA protease complex which is a ATP-dependent metalloprotease mediating degradation of non- assembled mitochondrial inner membrane proteins. The complex is necessary for the assembly of mitochondrial respiratory chain and ATPase complexes. Function both in post-translational assembly and in the turnover of mistranslated or misfolded polypeptides (825 aa)
       
 
  0.790
COX10
Heme A-farnesyltransferase, catalyzes the first step in the conversion of protoheme to the heme A prosthetic group required for cytochrome c oxidase activity; human ortholog is associated with mitochondrial disorders; Converts protoheme IX and farnesyl diphosphate to heme O (462 aa)
       
 
  0.780
YDR524W-C
Putative protein of unknown function; small ORF identified by SAGE; deletion strains are moderately sensitive to the radiomimetic drug bleomycin (29 aa)
           
  0.697
YME1
Catalytic subunit of the mitochondrial inner membrane i-AAA protease complex, which is responsible for degradation of unfolded or misfolded mitochondrial gene products; mutation causes an elevated rate of mitochondrial turnover; Catalytic subunit of the mitochondrial inner membrane i- AAA protease supercomplex required for mitochondrial inner membrane protein turnover. The protease is probably ATP-dependent. Important to maintain the integrity of the mitochondrial compartment. Required both for the degradation of unassembled subunit 2 of cytochrome c oxidase (COX2) and for efficient as [...] (747 aa)
       
 
  0.679
AFG3
Component, with Yta12p, of the mitochondrial inner membrane m-AAA protease that mediates degradation of misfolded or unassembled proteins and is also required for correct assembly of mitochondrial enzyme complexes; Acts as a component of the m-AAA protease complex which is a ATP-dependent metalloprotease mediating degradation of non- assembled mitochondrial inner membrane proteins. The complex is necessary for the assembly of mitochondrial respiratory chain and ATPase complexes. Function both in post-translational assembly and in the turnover of mistranslated or misfolded polypeptides (761 aa)
       
 
  0.668
YBR196C-A
Putative protein of unknown function; identified by fungal homology and RT-PCR (49 aa)
           
  0.642
COX6
Subunit VI of cytochrome c oxidase, which is the terminal member of the mitochondrial inner membrane electron transport chain; expression is regulated by oxygen levels; This is the heme A-containing chain of cytochrome c oxidase, the terminal oxidase in mitochondrial electron transport (148 aa)
     
 
  0.613
Your Current Organism:
Saccharomyces cerevisiae
NCBI taxonomy Id: 4932
Other names: Candida robusta, Pachytichospora, S. cerevisiae, Saccharomyces, Saccharomyces capensis, Saccharomyces cerevisiae, Saccharomyces italicus, Saccharomyces oviformis, Saccharomyces uvarum var. melibiosus, lager beer yeast, yeast
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