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HOT13 protein (Saccharomyces cerevisiae) - STRING interaction network
"HOT13" - Zinc-binding mitochondrial intermembrane space in Saccharomyces cerevisiae
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HOT13Zinc-binding mitochondrial intermembrane space (IMS) protein involved in a disulfide relay system for IMS import of cysteine-containing proteins; binds Mia40p and stimulates its Erv1p-dependent oxidation, probably by sequestering zinc; Required for the assembly or recycling of the small Tim proteins in the mitochondrial intermembrane, thereby participating in the import and insertion of multi-pass transmembrane proteins into the mitochondrial inner membrane. Probably acts by facilitating the formation of disulfide bonds in small Tim proteins (116 aa)    
Predicted Functional Partners:
MIA40
Essential protein of the mitochondrial intermembrane space (IMS); promotes retention of newly imported proteins; may do so by stabilizing client protein folding as part of a disulfide relay system or transferring metal to client proteins; Required for the import and folding of small cysteine- containing proteins (small Tim) in the mitochondrial intermembrane space (IMS). Forms a redox cycle with ERV1 that involves a disulfide relay system. Precursor proteins to be imported into the IMS are translocated in their reduced form into the mitochondria. The oxidized form of MIA40 forms a tran [...] (403 aa)
       
 
  0.956
ERV1
Flavin-linked sulfhydryl oxidase of the mitochondrial intermembrane space (IMS), oxidizes Mia40p as part of a disulfide relay system that promotes IMS retention of imported proteins; ortholog of human hepatopoietin (ALR); FAD-dependent sulfhydryl oxidase that catalyzes disulfide bond formation. Required for the import and folding of small cysteine-containing proteins in the mitochondrial intermembrane space (IMS). Forms a redox cycle with MIA40 that involves a disulfide relay system. Important for maintaining the cysteine residues in MIA40 in an oxidized state. Reduced ERV1 is reoxidiz [...] (189 aa)
       
 
  0.907
TIM12
Essential protein of the inner mitochondrial membrane, peripherally localized; component of the TIM22 complex, which is a twin-pore translocase that mediates insertion of numerous multispanning inner membrane proteins; Essential component of the TIM22 complex, a complex that mediates the import and insertion of multi-pass transmembrane proteins into the mitochondrial inner membrane. The TIM22 complex forms a twin-pore translocase that uses the membrane potential as external driving force. In the TIM22 complex, it acts as a docking point for the soluble TIM9-TIM10 heterohexamer that gui [...] (109 aa)
           
  0.848
TIM10
Essential protein of the mitochondrial intermembrane space, forms a complex with Tim9p (TIM10 complex) that delivers hydrophobic proteins to the TIM22 complex for insertion into the inner membrane; Mitochondrial intermembrane chaperone that participates in the import and insertion of multi-pass transmembrane proteins into the mitochondrial inner membrane. Also required for the transfer of beta-barrel precursors from the TOM complex to the sorting and assembly machinery (SAM complex) of the outer membrane. Acts as a chaperone-like protein that protects the hydrophobic precursors from ag [...] (93 aa)
           
  0.836
TIM22
Essential core component of the mitochondrial TIM22 complex involved in insertion of polytopic proteins into the inner membrane; forms the channel through which proteins are imported; Essential core component of the TIM22 complex, a complex that mediates the import and insertion of multi-pass transmembrane proteins, such as mitochondrial carrier family members, into the mitochondrial inner membrane. In the TIM22 complex, it constitutes the voltage-activated and signal-gated channel. Forms a twin-pore translocase that uses the membrane potential as external driving force in 2 voltage-de [...] (207 aa)
           
  0.794
TIM13
Mitochondrial intermembrane space protein, forms a complex with Tim8p that delivers a subset of hydrophobic proteins to the TIM22 complex for insertion into the inner membrane; Mitochondrial intermembrane chaperone that participates in the import and insertion of some multi-pass transmembrane proteins into the mitochondrial inner membrane. Also required for the transfer of beta-barrel precursors from the TOM complex to the sorting and assembly machinery (SAM complex) of the outer membrane. Acts as a chaperone-like protein that protects the hydrophobic precursors from aggregation and gu [...] (105 aa)
       
 
  0.764
CMC2
Protein of the mitochondrial intermembrane space with a role in respiratory chain complex assembly or maintenance; contains twin Cx9C motifs that can form coiled coil-helix-coiled-coil helix fold; Required for mitochondrial cytochrome c oxidase (COX) assembly and respiration. May be involved in copper trafficking and distribution to mitochondrial COX and SOD1 (109 aa)
           
  0.733
TIM54
Component of the mitochondrial TIM22 complex involved in insertion of polytopic proteins into the inner membrane; Essential component of the TIM22 complex, a complex that mediates the import and insertion of multi-pass transmembrane proteins into the mitochondrial inner membrane. The TIM22 complex forms a twin-pore translocase that uses the membrane potential as external driving force. Its precise function within the TIM22 complex is unclear (478 aa)
           
  0.725
TIM18
Component of the mitochondrial TIM22 complex involved in insertion of polytopic proteins into the inner membrane; may mediate assembly or stability of the complex; Component of the TIM22 complex, a complex that mediates the import and insertion of multi-pass transmembrane proteins into the mitochondrial inner membrane. The TIM22 complex forms a twin- pore translocase that uses the membrane potential as external driving force. Its role in the complex is unclear but it may be involved in the assembly and stabilization of the TIM22 complex (192 aa)
     
   
  0.719
PAM17
Constituent of the Translocase of the Inner Mitochondrial membrane (TIM23 complex); proposed alternatively to be a component of the import motor (PAM complex) or to interact with and modulate the core TIM23 complex; 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. In the complex, it is required to organize PAM16-PAM18 (TIM16-TIM14) heterodimer (197 aa)
           
  0.699
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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