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RRG8 RRG8 GAL4 GAL4 COX1 COX1 ATP6 ATP6 COB COB COX2 COX2 CYC3 CYC3 FZO1 FZO1 MRPL37 MRPL37 SLM5 SLM5 MSS2 MSS2 YDL129W YDL129W SRF1 SRF1 RRG1 RRG1 PET100 PET100 YDR114C YDR114C MRPL1 MRPL1 RSM24 RSM24 CBS2 CBS2 MHR1 MHR1 CYC7 CYC7 YMR31 YMR31 DOC1 DOC1 GTF1 GTF1 CCM1 CCM1 PET54 PET54 MSH1 MSH1 MTG2 MTG2 MRS1 MRS1 COX16 COX16 AIM22 AIM22 COA3 COA3 CYC1 CYC1 MGM101 MGM101 MRP17 MRP17 APN1 APN1 MRPL38 MRPL38 CBT1 CBT1 COX19 COX19 IRC19 IRC19 GEP5 GEP5 MSS51 MSS51 ACO1 ACO1 HMG2 HMG2 RAD52 RAD52 PIF1 PIF1 MTF1 MTF1 AEP2 AEP2 HER2 HER2 YNL184C YNL184C KAR1 KAR1 RRG9 RRG9 PET494 PET494 SDH5 SDH5 ATG34 ATG34 HMI1 HMI1 COQ3 COQ3 MGM1 MGM1 MRPS16 MRPS16 RRG7 RRG7 COX10 COX10 ATP4 ATP4
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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
filled nodes:
a 3D structure is known or predicted
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experimentally determined
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RRG8Protein of unknown function; required for mitochondrial genome maintenance; null mutation results in a decrease in plasma membrane electron transport; Belongs to the RRG8 family. (277 aa)
GAL4Regulatory protein GAL4; DNA-binding transcription factor required for activating GAL genes; responds to galactose; repressed by Gal80p and activated by Gal3p. (881 aa)
COX1Subunit I of cytochrome c oxidase (Complex IV); Complex IV is the terminal member of the mitochondrial inner membrane electron transport chain; one of three mitochondrially-encoded subunits; Belongs to the heme-copper respiratory oxidase family. (534 aa)
ATP6Subunit a of the F0 sector of mitochondrial F1F0 ATP synthase; mitochondrially encoded; translation is specifically activated by Atp22p; ATP6 and ATP8 mRNAs are not translated in the absence of the F1 sector of ATPase; mutations in human ortholog MT-ATP6 are associated with neurodegenerative disorders such as Neurogenic Ataxia and Retinitis Pigmentosa (NARP), Leigh syndrome (LS), Charcot-Marie-Tooth (CMT), and ataxia telangiectasia. (259 aa)
COBCytochrome b; mitochondrially encoded subunit of the ubiquinol-cytochrome c reductase complex which includes Cobp, Rip1p, Cyt1p, Cor1p, Qcr2p, Qcr6p, Qcr7p, Qcr8p, Qcr9p, and Qcr10p. (385 aa)
COX2Subunit II of cytochrome c oxidase (Complex IV); Complex IV is the terminal member of the mitochondrial inner membrane electron transport chain; one of three mitochondrially-encoded subunits. (251 aa)
CYC3Cytochrome c heme lyase (holocytochrome c synthase); attaches heme to apo-cytochrome c (Cyc1p or Cyc7p) in mitochondrial intermembrane space; human homolog HCCS implicated in microphthalmia with linear skin defects (MLS), and can complement yeast null mutant. (269 aa)
FZO1Mitofusin; integral membrane protein involved in mitochondrial outer membrane tethering and fusion; role in mitochondrial genome maintenance; efficient tethering and degradation of Fzo1p requires an intact N-terminal GTPase domain; targeted for destruction by the ubiquitin ligase SCF-Mdm30p and the cytosolic ubiquitin-proteasome system; Belongs to the TRAFAC class dynamin-like GTPase superfamily. Dynamin/Fzo/YdjA family. Mitofusin subfamily. (855 aa)
MRPL37Mitochondrial ribosomal protein of the large subunit. (105 aa)
SLM5Asparagine--tRNA ligase, mitochondrial; Mitochondrial asparaginyl-tRNA synthetase. (492 aa)
MSS2Protein MSS2, mitochondrial; Peripherally bound inner membrane protein of the mitochondrial matrix; involved in membrane insertion of C-terminus of Cox2p, interacts genetically and physically with Cox18p. (351 aa)
YDL129WUncharacterized protein YDL129W; Protein of unknown function; green fluorescent protein (GFP)-fusion protein localizes to the cytoplasm and the nucleus; YDL129W is not an essential gene; relative distribution to the nucleus increases upon DNA replication stress. (291 aa)
SRF1Regulator of phospholipase D (Spo14p); interacts with Spo14p and regulates its catalytic activity; capable of buffering the toxicity of C16:0 platelet activating factor, a lipid that accumulates intraneuronally in Alzheimer's patients. (437 aa)
RRG1Protein of unknown function; required for vacuolar acidification and mitochondrial genome maintenance; the authentic, non-tagged protein is detected in highly purified mitochondria in high-throughput studies; Belongs to the RRG1 family. (365 aa)
PET100Protein PET100, mitochondrial; Chaperone that facilitates the assembly of cytochrome c oxidase; integral to the mitochondrial inner membrane; interacts with a subcomplex of subunits VII, VIIa, and VIII (Cox7p, Cox9p, and Cox8p) but not with the holoenzyme. (111 aa)
YDR114CUncharacterized protein YDR114C; Putative protein of unknown function; deletion mutant exhibits poor growth at elevated pH and calcium. (100 aa)
MRPL1Mitochondrial ribosomal protein of the large subunit. (285 aa)
RSM24Mitochondrial ribosomal protein of the small subunit. (319 aa)
CBS2Mitochondrial translational activator of the COB mRNA; interacts with translating ribosomes, acts on the COB mRNA 5'-untranslated leader. (389 aa)
MHR1Mitochondrial ribosomal protein of the large subunit; also involved in homologous recombination in mitochondria; required for recombination-dependent mtDNA partitioning; involved in stimulation of mitochondrial DNA replication in response to oxidative stress. (226 aa)
CYC7Cytochrome c isoform 2, expressed under hypoxic conditions; also known as iso-2-cytochrome c; electron carrier of the mitochondrial intermembrane space that transfers electrons from ubiquinone-cytochrome c oxidoreductase to cytochrome c oxidase during cellular respiration; protein abundance increases in response to DNA replication stress; CYC7 has a paralog, CYC1, that arose from the whole genome duplication. (113 aa)
YMR3137S ribosomal protein YMR-31, mitochondrial; Subunit of the mitochondrial alpha-ketoglutarate dehydrogenase; recruits E3 subunit (Lpd1p) to the E1-E2 (Kgd1p, Kgd2p) core; has similarity to human mitochondrial ribosomal protein MRP-S36. (123 aa)
DOC1Anaphase-promoting complex subunit DOC1; Processivity factor; required for the ubiquitination activity of the anaphase promoting complex (APC), mediates the activity of the APC by contributing to substrate recognition; involved in cyclin proteolysis; contains a conserved DOC1 homology domain; Belongs to the APC10 family. (250 aa)
GTF1Glutamyl-tRNA(Gln) amidotransferase subunit F, mitochondrial; Subunit of the trimeric GatFAB AmidoTransferase(AdT) complex; involved in the formation of Q-tRNAQ; transposon insertion mutant is salt sensitive and null mutant has growth defects; non-tagged protein is detected in purified mitochondria. (183 aa)
CCM1Mitochondrial group I intron splicing factor CCM1; Mitochondrial 15S rRNA-binding protein; required for intron removal of COB and COX1 pre-mRNAs; has separable roles in stabilizing mitochondrial 15S rRNA and in maturation of the COB and COX1 mRNAs; contains pentatricopeptide repeat (PPR) motifs; mutant is respiratory deficient and has defective plasma membrane electron transport. (864 aa)
PET54Protein 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. (293 aa)
MSH1DNA-binding protein of the mitochondria; involved in repair of mitochondrial DNA; has ATPase activity and binds to DNA mismatches; has homology to E. coli MutS; transcription is induced during meiosis. (959 aa)
MTG2GTPase MTG2, mitochondrial; Putative GTPase; member of the Obg family; peripheral protein of the mitochondrial inner membrane that associates with the large ribosomal subunit; required for mitochondrial translation, possibly via a role in ribosome assembly; Belongs to the TRAFAC class OBG-HflX-like GTPase superfamily. OBG GTPase family. (518 aa)
MRS1Splicing protein; required for splicing of two mitochondrial group I introns (BI3 in COB and AI5beta in COX1); forms a splicing complex, containing four subunits of Mrs1p and two subunits of the BI3-encoded maturase, that binds to the BI3 RNA; MRS1 has a paralog, CCE1, that arose from the whole genome duplication. (363 aa)
COX16Mitochondrial inner membrane protein; required for assembly of cytochrome c oxidase. (118 aa)
AIM22Putative lipoate-protein ligase; required along with Lip2 and Lip5 for lipoylation of Lat1p and Kgd2p; similar to E. coli LplA; null mutant displays reduced frequency of mitochondrial genome loss; Belongs to the LplA family. (409 aa)
COA3Mitochondrial protein required for cytochrome c oxidase assembly; also involved in translational regulation of Cox1p and prevention of Cox1p aggregation before assembly; located in the mitochondrial inner membrane. (85 aa)
CYC1Cytochrome c, isoform 1; also known as iso-1-cytochrome c; electron carrier of mitochondrial intermembrane space that transfers electrons from ubiquinone-cytochrome c oxidoreductase to cytochrome c oxidase during cellular respiration; CYC1 has a paralog, CYC7, that arose from the whole genome duplication; human homolog CYC1 can complement yeast null mutant; mutations in human CYC1 cause insulin-responsive hyperglycemia. (109 aa)
MGM101Mitochondrial genome maintenance protein MGM101; Protein with a role in mitochondrial DNA recombinational repair; also involved in interstrand cross-link repair; binds to and catalyzes the annealing of single-stranded mtDNA; oligomerizes to form rings and filaments; related to Rad52-type recombination proteins, with limited overall similarity but sharing conserved functionally important residues; component of the mitochondrial nucleoid, required for the repair of oxidative mtDNA damage and mitochondrial genome maintenance; Belongs to the MGM101 family. (269 aa)
MRP17Mitochondrial ribosomal protein of the small subunit; MRP17 exhibits genetic interactions with PET122, encoding a COX3-specific translational activator. (131 aa)
APN1DNA-(apurinic or apyrimidinic site) lyase 1; Major apurinic/apyrimidinic endonuclease; 3'-repair diesterase; involved in repair of DNA damage by oxidation and alkylating agents; also functions as a 3'-5' exonuclease to repair 7,8-dihydro-8-oxodeoxyguanosine; genetically interacts with NTG1 to maintain mitochondrial genome integrity; Belongs to the AP endonuclease 2 family. (367 aa)
MRPL38Mitochondrial ribosomal protein of the large subunit; appears as two protein spots (YmL34 and YmL38) on two-dimensional SDS gels; protein abundance increases in response to DNA replication stress. (138 aa)
CBT1Cytochrome b termination protein 1; Protein involved in 5' RNA end processing; substrates include mitochondrial COB, 15S_rRNA, and RPM1 transcripts; may also have a role in 3' end processing of the COB pre-mRNA; displays genetic interaction with cell cycle-regulated kinase Dbf2p. (271 aa)
COX19Protein required for cytochrome c oxidase assembly; located in the cytosol and mitochondrial intermembrane space; putative copper metallochaperone that delivers copper to cytochrome c oxidase; contains twin cysteine-x9-cysteine motifs. (98 aa)
IRC19Increased recombination centers protein 19; Protein of unknown function; YLL033W is not an essential gene but mutant is defective in spore formation; null mutant displays increased levels of spontaneous Rad52p foci. (230 aa)
GEP5Genetic interactor of prohibitin 5, mitochondrial; Protein of unknown function; required for mitochondrial genome maintenance; detected in highly purified mitochondria in high-throughput studies; null mutant has decreased levels of cardiolipin and phosphatidylethanolamine; Belongs to the GEP5 family. (293 aa)
MSS51Protein MSS51, mitochondrial; Specific translational activator for the mitochondrial COX1 mRNA; loosely associated with the matrix face of the mitochondrial inner membrane; localizes to vacuole membrane in response to H2O2; influences both COX1 mRNA translation and Cox1p assembly into cytochrome c oxidase; binds to heme B, which may be a mechanism for sensing oxygen levels in order to regulate cytochrome c oxidase biogenesis. (436 aa)
ACO1Aconitate hydratase, mitochondrial; Aconitase; required for the tricarboxylic acid (TCA) cycle and also independently required for mitochondrial genome maintenance; component of the mitochondrial nucleoid; mutation leads to glutamate auxotrophy; human homolog ACO2 can complement yeast null mutant. (778 aa)
HMG2HMG-CoA reductase; converts HMG-CoA to mevalonate, a rate-limiting step in sterol biosynthesis; one of two isozymes; overproduction induces assembly of peripheral ER membrane arrays and short nuclear-associated membrane stacks; forms foci at nuclear periphery upon DNA replication stress; HMG2 has a paralog, HMG1, that arose from the whole genome duplication; human homolog HMGCR can complement yeast hmg2 mutant. (1045 aa)
RAD52DNA repair and recombination protein RAD52; Protein that stimulates strand exchange; stimulates strand exchange by facilitating Rad51p binding to single-stranded DNA; anneals complementary single-stranded DNA; involved in the repair of double-strand breaks in DNA during vegetative growth and meiosis and UV induced sister chromatid recombination; Belongs to the RAD52 family. (471 aa)
PIF1DNA helicase, potent G-quadruplex DNA binder/unwinder; possesses strand annealing activity; promotes DNA synthesis during break-induced replication; important for crossover recombination; translation from different start sites produces mitochondrial and nuclear forms; nuclear form is a catalytic inhibitor of telomerase; mitochondrial form involved in DNA repair and recombination; mutations affect Zn, Fe homeostasis; regulated by Rad53p-dependent phosphorylation in rho0 cells. (859 aa)
MTF1Mitochondrial RNA polymerase specificity factor; has structural similarity to S-adenosylmethionine-dependent methyltransferases and functional similarity to bacterial sigma-factors; Mtf1p interacts with and stabilizes the Rpo41p-promoter complex, enhancing DNA bending and melting to facilitate pre-initiation open complex formation; Belongs to the class I-like SAM-binding methyltransferase superfamily. rRNA adenine N(6)-methyltransferase family. (341 aa)
AEP2ATPase expression protein 2, mitochondrial; Mitochondrial protein; likely involved in translation of the mitochondrial OLI1 mRNA; exhibits genetic interaction with the OLI1 mRNA 5'-untranslated leader; Belongs to the AEP2 family. (580 aa)
HER2Glutamyl-tRNA(Gln) amidotransferase subunit A, mitochondrial; Subunit of the trimeric GatFAB AmidoTransferase(AdT) complex; involved in the formation of Q-tRNAQ; required for remodeling of ER caused by Hmg2p overexpression; similar to bacterial GatA glutamyl-tRNA amidotransferase. (464 aa)
YNL184CUncharacterized protein YNL184C; Protein of unknown function; expressed at both mRNA and protein levels. (108 aa)
KAR1Cell division control protein KAR1; Protein involved in karyogamy and spindle pole body duplication; involved in karyogamy during mating; involved in spindle pole body duplication during mitosis; localizes to the half-bridge of the spindle pole body; interacts with Spc72p during karyogamy; also interacts with Cdc31p; essential gene. (433 aa)
RRG9Required for respiratory growth protein 9, mitochondrial; Protein of unknown function; null mutant lacks mitochondrial DNA and cannot grow on glycerol; the authentic, non-tagged protein is detected in highly purified mitochondria in high-throughput studies. (214 aa)
PET494Mitochondrial translational activator specific for the COX3 mRNA; acts together with Pet54p and Pet122p; located in the mitochondrial inner membrane. (489 aa)
SDH5Succinate dehydrogenase assembly factor 2, mitochondrial; Protein required for flavinylation of Sdh1p; binds to Sdh1p and promotes FAD cofactor attachment, which is necessary for succinate dehydrogenase (SDH) complex assembly and activity; mutations in human ortholog PGL2 are associated with neuroendocrine tumors (paraganglioma). (162 aa)
ATG34Autophagy-related protein 34; Receptor protein involved in selective autophagy during starvation; specifically involved in the transport of cargo protein alpha-mannosidase (Ams1p); Atg19p paralog. (412 aa)
HMI1Mitochondrial inner membrane localized ATP-dependent DNA helicase; required for the maintenance of the mitochondrial genome; not required for mitochondrial transcription; has homology to E. coli helicase uvrD. (706 aa)
COQ3O-methyltransferase; catalyzes two different O-methylation steps in ubiquinone (Coenzyme Q) biosynthesis; component of a mitochondrial ubiquinone-synthesizing complex; phosphoprotein; Belongs to the class I-like SAM-binding methyltransferase superfamily. UbiG/COQ3 family. (312 aa)
MGM1Mitochondrial GTPase, present in complex with Ugo1p and Fzo1p; required for mitochondrial morphology, fusion, and genome maintenance; promotes membrane bending; exists as long and short form with different distributions; ratio of long to short forms is regulated by Psd1p; homolog of human OPA1 involved in autosomal dominant optic atrophy. (881 aa)
MRPS16Mitochondrial ribosomal protein of the small subunit. (121 aa)
RRG7Required for respiratory growth protein 7, mitochondrial; Protein of unknown function; green fluorescent protein (GFP)-fusion protein localizes to the mitochondrion; deletion confers sensitivity to 4-(N-(S-glutathionylacetyl)amino) phenylarsenoxide (GSAO); YOR305W is not an essential gene. (242 aa)
COX10Protoheme IX farnesyltransferase, mitochondrial; Heme A:farnesyltransferase; catalyzes first step in conversion of protoheme to heme A prosthetic group required for cytochrome c oxidase activity; human ortholog COX10 can complement yeast cox10 null mutant; human ortholog COX10 is associated with mitochondrial disorders; Belongs to the UbiA prenyltransferase family. (462 aa)
ATP4Subunit b of the stator stalk of mitochondrial F1F0 ATP synthase; ATP synthase is a large, evolutionarily conserved enzyme complex required for ATP synthesis; contributes to the oligomerization of the complex, which in turn determines the shape of inner membrane cristae; phosphorylated; Belongs to the eukaryotic ATPase B chain family. (244 aa)
Your Current Organism:
Saccharomyces cerevisiae
NCBI taxonomy Id: 4932
Other names: ATCC 18824, Candida robusta, Mycoderma cerevisiae, NRRL Y-12632, S. cerevisiae, Saccharomyces capensis, Saccharomyces italicus, Saccharomyces oviformis, Saccharomyces uvarum var. melibiosus, yeast
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