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NPT1 protein (Saccharomyces cerevisiae) - STRING interaction network
"NPT1" - Nicotinate phosphoribosyltransferase, acts in the salvage pathway of NAD+ biosynthesis in Saccharomyces cerevisiae
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Known Interactions
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experimentally determined
Predicted Interactions
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textmining
co-expression
protein homology
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NPT1Nicotinate phosphoribosyltransferase, acts in the salvage pathway of NAD+ biosynthesis; required for silencing at rDNA and telomeres and has a role in silencing at mating-type loci; localized to the nucleus; Essential for growth under anaerobic conditions (429 aa)    
Predicted Functional Partners:
PNC1
Nicotinamidase that converts nicotinamide to nicotinic acid as part of the NAD(+) salvage pathway, required for life span extension by calorie restriction; PNC1 expression responds to all known stimuli that extend replicative life span; Catalyzes the deamidation of nicotinamide, an early step in the NAD(+) salvage pathway. Positively regulates SIR2-mediated silencing and longevity by preventing the accumulation of intracellular nicotinamide, an inhibitor of SIR2, during times of stress. Acts also on nicotinyl hydroxamate (216 aa)
 
 
  0.996
NMA1
Nicotinic acid mononucleotide adenylyltransferase, involved in pathways of NAD biosynthesis, including the de novo, NAD(+) salvage, and nicotinamide riboside salvage pathways; Catalyzes the formation of NAD(+) from nicotinamide mononucleotide (NMN) and ATP. Can also use the deamidated form; nicotinic acid mononucleotide (NaMN) as substrate to form deamido- NAD(+) (NaAD). Key enzyme in both de novo and salvage pathways for NAD(+) biosynthesis. Predominantly acts in the salvage pathways via NMN (401 aa)
       
  0.994
NMA2
Nicotinic acid mononucleotide adenylyltransferase, involved in de novo and salvage synthesis of NAD(+); Catalyzes the formation of NAD(+) from nicotinamide mononucleotide (NMN) and ATP (PubMed-12597897). Can also use the deamidated form; nicotinic acid mononucleotide (NaMN) as substrate to form deamido-NAD(+) (NaAD). Key enzyme in both de novo and salvage pathways for NAD(+) biosynthesis (By similarity). Predominantly acts in the salvage pathways via NMN (PubMed-11884393) (395 aa)
       
  0.991
NRK1
Nicotinamide riboside kinase, catalyzes the phosphorylation of nicotinamide riboside and nicotinic acid riboside in salvage pathways for NAD+ biosynthesis; Catalyzes the phosphorylation of nicotinamide riboside (NR) and nicotinic acid riboside (NaR) to form nicotinamide mononucleotide (NMN) and nicotinic acid mononucleotide (NaMN) (240 aa)
     
  0.989
BNA6
Quinolinate phosphoribosyl transferase, required for the de novo biosynthesis of NAD from tryptophan via kynurenine; expression regulated by Hst1p; Involved in the catabolism of quinolinic acid (QA) (295 aa)
   
  0.989
QNS1
Glutamine-dependent NAD(+) synthetase, essential for the formation of NAD(+) from nicotinic acid adenine dinucleotide (714 aa)
   
 
  0.975
URH1
Uridine nucleosidase (uridine-cytidine N-ribohydrolase), cleaves N-glycosidic bonds in nucleosides; involved in the pyrimidine salvage and nicotinamide riboside salvage pathways; Also acts on cytidine (340 aa)
         
  0.966
AMD2
Putative amidase (549 aa)
         
    0.959
PNP1
Purine nucleoside phosphorylase, specifically metabolizes inosine and guanosine nucleosides; involved in the nicotinamide riboside salvage pathway; The purine nucleoside phosphorylases catalyze the phosphorolytic breakdown of the N-glycosidic bond in the beta- (deoxy)ribonucleoside molecules, with the formation of the corresponding free purine bases and pentose-1-phosphate. Cleaves guanosine and inosine (By similarity) (311 aa)
       
  0.959
ISN1
Inosine 5’-monophosphate (IMP)-specific 5’-nucleotidase, catalyzes the breakdown of IMP to inosine, does not show similarity to known 5’-nucleotidases from other organisms; IMP-specific 5’-nucleotidase involved in IMP (inosine 5’-phosphate) degradation (450 aa)
         
  0.942
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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