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RIB1 protein (Saccharomyces cerevisiae) - STRING interaction network
"RIB1" - GTP cyclohydrolase II in Saccharomyces cerevisiae
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experimentally determined
Predicted Interactions
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textmining
co-expression
protein homology
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RIB1GTP cyclohydrolase II; catalyzes the first step of the riboflavin biosynthesis pathway; Catalyzes the conversion of GTP to 2,5-diamino-6- ribosylamino-4(3H)-pyrimidinone 5’-phosphate (DARP), formate and pyrophosphate (345 aa)    
Predicted Functional Partners:
RIB7
Diaminohydroxyphoshoribosylaminopyrimidine deaminase; catalyzes the second step of the riboflavin biosynthesis pathway; Catalyzes an early step in riboflavin biosynthesis, the NADPH-dependent reduction of the ribose side chain of 2,5-diamino- 6-ribosylamino-4(3H)-pyrimidinone 5’-phosphate, yielding 2,5- diamino-6-ribitylamino-4(3H)-pyrimidinone 5’-phosphate (244 aa)
  0.999
RIB3
3,4-dihydroxy-2-butanone-4-phosphate synthase (DHBP synthase), required for riboflavin biosynthesis from ribulose-5-phosphate, also has an unrelated function in mitochondrial respiration; Catalyzes the conversion of D-ribulose 5-phosphate to formate and 3,4-dihydroxy-2-butanone 4-phosphate (208 aa)
 
  0.998
RIB5
Riboflavin synthase; catalyzes the last step of the riboflavin biosynthesis pathway; Catalyzes the dismutation of two molecules of 6,7- dimethyl-8-ribityllumazine, resulting in the formation of riboflavin and 5-amino-6-(D-ribitylamino)uracil (238 aa)
 
  0.994
RIB4
Lumazine synthase (6,7-dimethyl-8-ribityllumazine synthase, also known as DMRL synthase); catalyzes synthesis of immediate precursor to riboflavin; Catalyzes the formation of 6,7-dimethyl-8- ribityllumazine by condensation of 5-amino-6-(D- ribitylamino)uracil with 3,4-dihydroxy-2-butanone 4-phosphate. This is the penultimate step in the biosynthesis of riboflavin (169 aa)
 
 
  0.990
RIB2
Bifunctional enzyme with DRAP deaminase and tRNA-pseudouridine synthase activity; the deaminase catalyzes the third step in riboflavin biosynthesis and the synthase catalyzes formation of pseudouridine at position 32 in cytoplasmic tRNAs; Responsible for synthesis of pseudouridine from uracil- 32 in cytoplasmic transfer RNAs (591 aa)
   
  0.989
CYR1
Adenylate cyclase, required for cAMP production and cAMP-dependent protein kinase signaling; the cAMP pathway controls a variety of cellular processes, including metabolism, cell cycle, stress response, stationary phase, and sporulation; Plays essential roles in regulation of cellular metabolism by catalyzing the synthesis of a second messenger, cAMP (2026 aa)
       
  0.821
RPO26
RNA polymerase subunit ABC23, common to RNA polymerases I, II, and III; part of central core; similar to bacterial omega subunit; DNA-dependent RNA polymerases catalyze the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates. Common component of RNA polymerases I, II and III which synthesize ribosomal RNA precursors, mRNA precursors and many functional non-coding RNAs, and small RNAs, such as 5S rRNA and tRNAs, respectively. Pol II is the central component of the basal RNA polymerase II transcription machinery. RNA polymerases are composed of mobile [...] (155 aa)
       
    0.815
CDC19
Pyruvate kinase, functions as a homotetramer in glycolysis to convert phosphoenolpyruvate to pyruvate, the input for aerobic (TCA cycle) or anaerobic (glucose fermentation) respiration (500 aa)
         
  0.813
PYK2
Pyruvate kinase that appears to be modulated by phosphorylation; PYK2 transcription is repressed by glucose, and Pyk2p may be active under low glycolytic flux; May be used by cells under conditions in which the level of glycolytic flux is very low (506 aa)
         
  0.811
YNK1
Nucleoside diphosphate kinase, catalyzes the transfer of gamma phosphates from nucleoside triphosphates, usually ATP, to nucleoside diphosphates by a mechanism that involves formation of an autophosphorylated enzyme intermediate; Major role in the synthesis of nucleoside triphosphates other than ATP. The ATP gamma phosphate is transferred to the NDP beta phosphate via a ping-pong mechanism, using a phosphorylated active-site intermediate. Required for repair of UV radiation- and etoposide-induced DNA damage (153 aa)
         
  0.810
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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