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JJJ3 protein (Saccharomyces cerevisiae) - STRING interaction network
"JJJ3" - Protein of unknown function, contains a J-domain, which is a region with homology to the E. coli DnaJ protein in Saccharomyces cerevisiae
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query proteins and first shell of interactors
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second shell of interactors
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proteins of unknown 3D structure
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some 3D structure is known or predicted
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Known Interactions
from curated databases
experimentally determined
Predicted Interactions
gene neighborhood
gene fusions
gene co-occurrence
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textmining
co-expression
protein homology
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[Homology]
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JJJ3Protein of unknown function, contains a J-domain, which is a region with homology to the E. coli DnaJ protein; Required for the first step of diphthamide biosynthesis, the transfer of 3-amino-3-carboxypropyl from S-adenosyl-L- methionine to a histidine residue. Diphthamide is a post- translational modification of histidine which occurs in elongation factor 2 (172 aa)    
Predicted Functional Partners:
YDJ1
Type I HSP40 co-chaperone involved in regulation of the HSP90 and HSP70 functions; involved in protein translocation across membranes; member of the DnaJ family; Probably involved in mitochondrial protein import. Is also required for efficient translocation of pre-pro-alpha-factor. Involved in heme regulation of HAP1, as a component of the high- molecular-weight (HMC) complex (409 aa)
     
 
  0.868
SSE1
ATPase that is a component of the heat shock protein Hsp90 chaperone complex; binds unfolded proteins; member of the heat shock protein 70 (HSP70) family; localized to the cytoplasm; Has a calcium-dependent calmodulin-binding activity. Required for normal growth at various temperatures (693 aa)
   
 
  0.850
ECM10
Heat shock protein of the Hsp70 family, localized in mitochondrial nucleoids, plays a role in protein translocation, interacts with Mge1p in an ATP-dependent manner; overexpression induces extensive mitochondrial DNA aggregations; Plays a role in facilitating the assembly of some protein complexes inside the mitochondria. It may initiate the events that lead to refolding of imported precursors in the matrix space (644 aa)
   
 
  0.849
SSQ1
Mitochondrial hsp70-type molecular chaperone, required for assembly of iron/sulfur clusters into proteins at a step after cluster synthesis, and for maturation of Yfh1p, which is a homolog of human frataxin implicated in Friedreich’s ataxia; Has a role in mitochondrial iron homeostasis. Appears to be involved in the processing of the intermediate form of the frataxin homolog YFH1. Required for the assembly of iron-sulfur (Fe/S) clusters in mitochondria (657 aa)
   
 
  0.842
LHS1
Molecular chaperone of the endoplasmic reticulum lumen, involved in polypeptide translocation and folding; nucleotide exchange factor for the ER lumenal Hsp70 chaperone Kar2p; regulated by the unfolded protein response pathway; Chaperone required for protein translocation and folding in the endoplasmic reticulum (881 aa)
   
 
  0.842
SSZ1
Hsp70 protein that interacts with Zuo1p (a DnaJ homolog) to form a ribosome-associated complex that binds the ribosome via the Zuo1p subunit; also involved in pleiotropic drug resistance via sequential activation of PDR1 and PDR5; binds ATP; Component of the ribosome-associated complex (RAC), a heterodimeric chaperone complex involved in regulation of accurate translation termination and in folding or maintaining nascent polypeptides in a folding-competent state. RAC stimulates the ATPase activity of the ribosome-associated pool of Hsp70-type chaperones SSB1/SSB2 that bind to the nasce [...] (538 aa)
   
 
  0.835
SSA1
ATPase involved in protein folding and nuclear localization signal (NLS)-directed nuclear transport; member of heat shock protein 70 (HSP70) family; forms a chaperone complex with Ydj1p; localized to the nucleus, cytoplasm, and cell wall; 98% identi /.../th Ssa2p, but subtle differences between the two proteins provide functional specificity with respect to propagation of yeast [URE3] prions and vacuolar-mediated degradations of gluconeogenesis enzymes; May play a role in the transport of polypeptides both across the mitochondrial membranes and into the endoplasmic reticulum. A functio [...] (642 aa)
   
 
  0.835
APJ1
Putative chaperone of the HSP40 (DNAJ) family; overexpression interferes with propagation of the [Psi+] prion; the authentic, non-tagged protein is detected in highly purified mitochondria in high-throughput studies; Putative chaperone involved in protein folding. Interferes with propagation of [PSI+] prion when overproduced (528 aa)
     
 
  0.829
SIS1
Type II HSP40 co-chaperone that interacts with the HSP70 protein Ssa1p; not functionally redundant with Ydj1p due to due to substrate specificity; shares similarity with bacterial DnaJ proteins; Required for nuclear migration during mitosis. It is required for the normal initiation of translation. Might mediate the dissociation of a specific protein complex of the translation machinery. Essential for viability (352 aa)
   
 
  0.828
HLJ1
Co-chaperone for Hsp40p, anchored in the ER membrane; with its homolog Ydj1p promotes ER-associated protein degradation (ERAD) of integral membrane substrates; similar to E. coli DnaJ (224 aa)
   
 
  0.828
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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