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MSS51 protein (Saccharomyces cerevisiae) - STRING interaction network
"MSS51" - Specific translational activator for the mitochondrial COX1 mRNA in Saccharomyces cerevisiae
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MSS51Specific translational activator for the mitochondrial COX1 mRNA; loosely associated with the matrix face of the mitochondrial inner membrane; influences both COX1 mRNA translation and Cox1p assembly into cytochrome c oxidase; Has a dual role in the assembly of cytochrome oxidase subunit 1 (COX1). It has a regulative function on COX1 synthesis, acting as a translational activator specific for the COX1 mRNA, and it also binds to newly synthesized COX1 protein. Together with COX14, may act as a chaperone that binds efficiently unassembled COX1 and prevents it from unproductive aggregatio [...] (436 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)
       
 
  0.939
COX1
Subunit I of cytochrome c oxidase, which is the terminal member of the mitochondrial inner membrane electron transport chain; one of three mitochondrially-encoded subunits; Cytochrome c oxidase is the component of the respiratory chain that catalyzes the reduction of oxygen to water. Subunits 1- 3 form the functional core of the enzyme complex. CO I is the catalytic subunit of the enzyme. Electrons originating in cytochrome c are transferred via the copper A center of subunit 2 and heme A of subunit 1 to the bimetallic center formed by heme A3 and copper B (534 aa)
       
 
  0.936
COA1
Mitochondrial inner membrane protein required for assembly of the cytochrome c oxidase complex (complex IV); interacts with complex IV assembly factor Shy1p during the early stages of assembly; Required for efficient assembly of cytochrome c oxidase in the mitochondrial inner membrane. Involved in a step coupling MSS51-dependent cotranslational insertion of COX1 to the addition of its heme A and copper B cofactors (197 aa)
     
 
  0.899
COX2
Subunit II of cytochrome c oxidase, which is the terminal member of the mitochondrial inner membrane electron transport chain; one of three mitochondrially-encoded subunits; Cytochrome c oxidase is the component of the respiratory chain that catalyzes the reduction of oxygen to water. Subunits 1- 3 form the functional core of the enzyme complex. Subunit 2 transfers the electrons from cytochrome c via its binuclear copper A center to the bimetallic center of the catalytic subunit 1 (251 aa)
       
 
  0.876
COX14
Mitochondrial membrane protein, involved in translational regulation of Cox1p and assembly of cytochrome c oxidase (complex IV); associates with complex IV assembly intermediates and complex III/complex IV supercomplexes; Required for the synthesis of yeast cytochrome oxidase (70 aa)
     
 
  0.872
SSC1
Hsp70 family ATPase, constituent of the import motor component of the Translocase of the Inner Mitochondrial membrane (TIM23 complex); involved in protein translocation and folding; subunit of SceI endonuclease; Essential component of the PAM complex, a complex required for the translocation of transit peptide-containing proteins from the inner membrane into the mitochondrial matrix in an ATP-dependent manner. Constitutes the ATP-driven core of the motor and binds the precursor preprotein. Required for the import of the processed fratxin homolog YFH1 into the mitochondrion (654 aa)
     
      0.868
OLI1
F0-ATP synthase subunit c (ATPase-associated proteolipid), encoded on the mitochondrial genome; mutation confers oligomycin resistance; expression is specifically dependent on the nuclear genes AEP1 and AEP2; Mitochondrial membrane ATP synthase (F(1)F(0) ATP synthase or Complex V) produces ATP from ADP in the presence of a proton gradient across the membrane which is generated by electron transport complexes of the respiratory chain. F-type ATPases consist of two structural domains, F(1) - containing the extramembraneous catalytic core and F(0) - containing the membrane proton channel, [...] (76 aa)
     
 
  0.823
ATP6
Mitochondrially encoded subunit a of the F0 sector of mitochondrial F1F0 ATP synthase; translation is specifically activated by Atp22p; ATP6 and ATP8 mRNAs are not translated in the absence of the F1 sector of ATPase; Mitochondrial membrane ATP synthase (F(1)F(0) ATP synthase or Complex V) produces ATP from ADP in the presence of a proton gradient across the membrane which is generated by electron transport complexes of the respiratory chain. F-type ATPases consist of two structural domains, F(1) - containing the extramembraneous catalytic core and F(0) - containing the membrane proton [...] (259 aa)
       
 
  0.812
PET54
Mitochondrial inner membrane protein; binds to the 5’ UTR of the COX3 mRNA to activate its translation together with Pet122p and Pet494p; also binds to the COX1 Group I intron AI5 beta to facilitate exon ligation during splicing; Activator of specific mitochondrial mRNAs. PET54 is involved in the excision of intron aI5-beta from pre-mRNA for cytochrome c oxidase I (COX1) and plays a role in promoting the translation of COX3 (293 aa)
       
 
  0.812
PET309
Specific translational activator for the COX1 mRNA, also influences stability of intron-containing COX1 primary transcripts; localizes to the mitochondrial inner membrane; contains seven pentatricopeptide repeats (PPRs); Required for initiation of translation of the COX1 coding region. Also involved in the stability of the intron containing transcript of COX1 (965 aa)
       
 
  0.810
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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