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POS5 protein (Saccharomyces cerevisiae) - STRING interaction network
"POS5" - Mitochondrial NADH kinase, phosphorylates NADH in Saccharomyces cerevisiae
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Predicted Interactions
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POS5Mitochondrial NADH kinase, phosphorylates NADH; also phosphorylates NAD(+) with lower specificity; required for the response to oxidative stress; Phosphorylates both NADH and NAD(+), with a twofold preference for NADH. Anti-oxidant factor and key source of the cellular reductant NADPH (414 aa)    
Predicted Functional Partners:
ALD4
Mitochondrial aldehyde dehydrogenase, required for growth on ethanol and conversion of acetaldehyde to acetate; phosphorylated; activity is K+ dependent; utilizes NADP+ or NAD+ equally as coenzymes; expression is glucose repressed; Potassium-activated aldehyde dehydrogenase involved in acetate formation during anaerobic growth on glucose (519 aa)
       
  0.988
ALD5
Mitochondrial aldehyde dehydrogenase, involved in regulation or biosynthesis of electron transport chain components and acetate formation; activated by K+; utilizes NADP+ as the preferred coenzyme; constitutively expressed; Minor mitochondrial aldehyde dehydrogenase isoform. Plays a role in regulation or biosynthesis of electron transport chain components. Involved in the biosynthesis of acetate during anaerobic growth on glucose (520 aa)
       
  0.986
ZWF1
Glucose-6-phosphate dehydrogenase (G6PD), catalyzes the first step of the pentose phosphate pathway; involved in adapting to oxidatve stress; homolog of the human G6PD which is deficient in patients with hemolytic anemia; Catalyzes the rate-limiting step of the oxidative pentose-phosphate pathway, which represents a route for the dissimilation of carbohydrates besides glycolysis. The main function of this enzyme is to provide reducing power (NADPH) and pentose phosphates for fatty acid and nucleic acid synthesis (By similarity) (505 aa)
     
 
  0.985
ALD6
Cytosolic aldehyde dehydrogenase, activated by Mg2+ and utilizes NADP+ as the preferred coenzyme; required for conversion of acetaldehyde to acetate; constitutively expressed; locates to the mitochondrial outer surface upon oxidative stress; Cytosolic aldehyde dehydrogenase which utilizes NADP+ as the preferred coenzyme. Performs the conversion of acetaldehyde to acetate (500 aa)
         
  0.973
ALD3
Cytoplasmic aldehyde dehydrogenase, involved in beta-alanine synthesis; uses NAD+ as the preferred coenzyme; very similar to Ald2p; expression is induced by stress and repressed by glucose; Cytoplasmic aldehyde dehydrogenase involved in ethanol oxidation. Involved in pantothenic acid production through the conversion of 3-aminopropanal to beta-alanine, an intermediate in pantothenic acid (vitamin B5) and coenzyme A (CoA) biosynthesis (506 aa)
         
  0.968
IDP2
Cytosolic NADP-specific isocitrate dehydrogenase, catalyzes oxidation of isocitrate to alpha-ketoglutarate; levels are elevated during growth on non-fermentable carbon sources and reduced during growth on glucose; May function in the production of NADPH for fatty acid and sterol synthesis (412 aa)
         
  0.965
ALD2
Cytoplasmic aldehyde dehydrogenase, involved in ethanol oxidation and beta-alanine biosynthesis; uses NAD+ as the preferred coenzyme; expression is stress induced and glucose repressed; very similar to Ald3p; Cytoplasmic aldehyde dehydrogenase involved in ethanol oxidation. Required for pantothenic acid production through the conversion of 3-aminopropanal to beta-alanine, an intermediate in pantothenic acid (vitamin B5) and coenzyme A (CoA) biosynthesis (506 aa)
         
  0.964
IDP1
Mitochondrial NADP-specific isocitrate dehydrogenase, catalyzes the oxidation of isocitrate to alpha-ketoglutarate; not required for mitochondrial respiration and may function to divert alpha-ketoglutarate to biosynthetic processes; Mitochondrial IDP1 may regulate flux through the tricarboxylic acid cycle and respiration. Its probably critical function is the production of NADPH (428 aa)
       
  0.900
GLR1
Cytosolic and mitochondrial glutathione oxidoreductase, converts oxidized glutathione to reduced glutathione; mitochondrial but not cytosolic form has a role in resistance to hyperoxia; Maintains high levels of reduced glutathione in the cytosol (483 aa)
         
  0.793
YEF1
ATP-NADH kinase; phosphorylates both NAD and NADH; homooctameric structure consisting of 60-kDa subunits; sequence similarity to Utr1p and Pos5p; overexpression complements certain pos5 phenotypes; ATP-NADH kinase with a low phosphorylation activity of both NADH and NAD(+) to produce NADP and NADPH by using ATP. UTR1 is responsible for essentially all of the NAD/NADH kinase activity resident in the cytoplasm, whereas POS5 is responsible for all mitochondrial NAD/NADH kinase activity and consequent mitochondrial genome maintenance. YEF1 can substitute for UTR1 when overexpressed (495 aa)
   
 
 
0.755
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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