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PPX1 protein (Saccharomyces cerevisiae) - STRING interaction network
"PPX1" - Exopolyphosphatase, hydrolyzes inorganic polyphosphate (poly P) into Pi residues in Saccharomyces cerevisiae
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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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PPX1Exopolyphosphatase, hydrolyzes inorganic polyphosphate (poly P) into Pi residues; located in the cytosol, plasma membrane, and mitochondrial matrix; Degradation of inorganic polyphosphates (397 aa)    
Predicted Functional Partners:
PPN1
Vacuolar endopolyphosphatase with a role in phosphate metabolism; functions as a homodimer; Catalyzes the hydrolysis of inorganic polyphosphate (poly P) chains of many hundreds of phosphate residues into shorter lengths. The limited digestion products are 1 and 3 P(i) residues (674 aa)
       
 
  0.950
TOP2
Topoisomerase II, relieves torsional strain in DNA by cleaving and re-sealing the phosphodiester backbone of both positively and negatively supercoiled DNA; cleaves complementary strands; localizes to axial cores in meiosis; Control of topological states of DNA by transient breakage and subsequent rejoining of DNA strands. Topoisomerase II makes double-strand breaks. Essential during mitosis and meiosis for proper segregation of daughter chromosomes (1428 aa)
         
  0.545
DDP1
Polyphosphate phosphatase; hydrolyzes diphosphorylated inositol polyphosphates and diadenosine polyphosphates; has high specificity for diadenosine hexa- and pentaphosphates; exhibits endopolyphosphatase activity with a high affinity for polyphospha /.../n activity also observed for its human DIPP homologs; member of the MutT family of nucleotide hydrolases; May eliminate potentially toxic dinucleoside polyphosphates during sporulation. Most active against diadenosine 5’,5’’’-P1,P6-hexaphosphate (Ap6A). Can also hydrolyze diadenosine 5’,5’’’-P1,P5-pentaphosphate (Ap5A), adenosine 5’-pe [...] (188 aa)
         
  0.534
PSA1
GDP-mannose pyrophosphorylase (mannose-1-phosphate guanyltransferase), synthesizes GDP-mannose from GTP and mannose-1-phosphate in cell wall biosynthesis; required for normal cell wall structure; Involved in cell wall synthesis where it is required for glycosylation. Involved in cell cycle progression through cell- size checkpoint (361 aa)
     
      0.477
VTC3
Subunit of the vacuolar transporter chaperone (VTC) complex involved in membrane trafficking, vacuolar polyphosphate accumulation, microautophagy and non-autophagic vacuolar fusion; Component of the vacuolar transporter chaperone (VTC) complex, which plays a role in vacuolar membrane fusion. Required for LMA1 release prior to membrane fusion (835 aa)
     
   
  0.425
IMD2
Inosine monophosphate dehydrogenase, catalyzes the rate-limiting step in GTP biosynthesis, expression is induced by mycophenolic acid resulting in resistance to the drug, expression is repressed by nutrient limitatio; Catalyzes the conversion of inosine 5’-phosphate (IMP) to xanthosine 5’-phosphate (XMP), the first committed and rate- limiting step in the de novo synthesis of guanine nucleotides, and therefore plays an important role in the regulation of cell growth. In contrast to the other IMPDH alleles IMD3 and IMD4, the enzymatic activity of IMD2 seems to be intrinsically drug resistant (523 aa)
   
   
  0.424
IMD1
Nonfunctional protein with homology to IMP dehydrogenase; probable pseudogene, located close to the telomere; is not expressed at detectable levels; YAR073W and YAR075W comprise a continuous reading frame in some strains of S. cerevisiae (403 aa)
   
   
  0.424
SCC2
Subunit of cohesin loading factor (Scc2p-Scc4p), a complex required for loading of cohesin complexes onto chromosomes; involved in establishing sister chromatid cohesion during DSB repair via histone H2AX; evolutionarily-conserved adherin; Plays a structural role in chromatin. Involved in sister chromatid cohesion. Forms a complex with SCC4 required for the stable association of the cohesin complex with chromatin, which may act by hydrolyzing ATP from SMC1 and SMC3 heads. Also participates in DNA repair (1493 aa)
           
  0.418
VTC2
Subunit of the vacuolar transporter chaperone (VTC) complex involved in membrane trafficking, vacuolar polyphosphate accumulation, microautophagy and non-autophagic vacuolar fusion; Component of the vacuolar transporter chaperone (VTC) complex, which plays a role in vacuolar membrane fusion (828 aa)
     
   
  0.401
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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