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PET309 protein (Saccharomyces cerevisiae) - STRING interaction network
"PET309" - Specific translational activator for the COX1 mRNA, also influences stability of intron-containing COX1 primary transcripts in Saccharomyces cerevisiae
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PET309Specific 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)    
Predicted Functional Partners:
PET111
Mitochondrial translational activator specific for the COX2 mRNA; located in the mitochondrial inner membrane; Required for translation of the mitochondrial gene for cytochrome c oxidase subunit II (COX2) (800 aa)
       
 
  0.937
MTF2
Mitochondrial matrix protein that interacts with an N-terminal region of mitochondrial RNA polymerase (Rpo41p) and couples RNA processing and translation to transcription; Required for the processing and/or for the stability of the CYTB and COX1 intron-containing pre-mRNAs and of the ATP6 transcript. Could be a stem-loop RNA-binding protein that plays a role in determining RNA stability (440 aa)
       
 
  0.924
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)
           
  0.906
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)
       
 
  0.905
COX11
Protein required for delivery of copper to Cox1p; mitochondrial inner membrane protein; association with mitochondrial ribosomes suggests that copper delivery may occur during translation of Cox1p; Exerts its effect at some terminal stage of cytochrome c oxidase synthesis, probably by being involved in the insertion of the copper B into subunit I (300 aa)
       
 
  0.894
PET122
Mitochondrial translational activator specific for the COX3 mRNA, acts together with Pet54p and Pet494p; located in the mitochondrial inner membrane; Required for expression of the mitochondrial gene for cytochrome c oxidase subunit 3 (COX3). PET122 seems to work by directly interacting with the small ribosomal subunit to promote translation initiation on the COX3 mRNA (254 aa)
       
 
  0.889
CBP1
Mitochondrial protein that interacts with the 5’-untranslated region of the COB mRNA and has a role in its stability and translation; found in a complex at the inner membrane along with Pet309p; Responsible for conferring a stable 5’-end on cytochrome b mRNA (654 aa)
       
 
  0.842
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)
     
   
  0.816
MSS51
Specific 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)
       
 
  0.810
VAR1
Mitochondrial ribosomal protein of the small subunit, mitochondrially-encoded; polymorphic in different strains due to variation in number of AAT (asparagine) codons; translated near the mitochondrial inner membrane; Essential for mitochondrial protein synthesis and required for the maturation of small ribosomal subunits (398 aa)
           
  0.794
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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