STRINGSTRING
STRING protein interaction network
Nodes:
Network nodes represent proteins
splice isoforms or post-translational modifications are collapsed, i.e. each node represents all the proteins produced by a single, protein-coding gene locus.
Node Color
colored nodes:
query proteins and first shell of interactors
white nodes:
second shell of interactors
Node Content
empty nodes:
proteins of unknown 3D structure
filled nodes:
a 3D structure is known or predicted
Edges:
Edges represent protein-protein associations
associations are meant to be specific and meaningful, i.e. proteins jointly contribute to a shared function; this does not necessarily mean they are physically binding to each other.
Knowledge-based Evidence
from curated databases
textmining
Assay-based Predictions
experimentally determined
co-expression
Genomic Predictions
gene neighborhood
gene co-occurrence
gene fusions
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[Homology]
Score
ribBGTP cyclohydrolase II (ribA); Catalyzes the conversion of D-ribulose 5-phosphate to formate and 3,4-dihydroxy-2-butanone 4-phosphate. (227 aa)    
Predicted Functional Partners:
ribH
Riboflavin synthase beta chain (ribH); 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; Belongs to the DMRL synthase family.
 
 
 0.999
arfC
Riboflavin-specific deaminase (ribG); Catalyzes an early step in riboflavin biosynthesis, the NAD(P)H-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. The beta anomer is the authentic substrate, and the alpha anomer can serve as substrate subsequent to spontaneous anomerization. NADPH and NADH function equally well as the reductants. Does not catalyze the reduction of 5- amino-6-(5-phospho-D-ribosylamino)uracil to 5-amino-6-(5-phospho-D- ribitylamino)uracil; [...]
 
 
 0.964
ribK
Conserved hypothetical protein; Catalyzes the CTP-dependent phosphorylation of riboflavin (vitamin B2) to form flavin mononucleotide (FMN). Can also utilize UTP as the phosphate donor, although less efficiently, and it is unclear if ATP and GTP can also serve as substrates or not.
     
 0.959
ribC
Riboflavin synthase (ribC); Similar to GP:1419079 percent identity: 68.00; identified by sequence similarity; putative; Belongs to the DMRL synthase family.
 
   
 0.879
MJ_0057
Na+/H+ antiporter; This is a Na(+)/H(+) antiporter. Can also transport lithium. Belongs to the monovalent cation:proton antiporter 1 (CPA1) transporter (TC 2.A.36) family.
     
 0.767
MJ_0054
Conserved hypothetical protein; Similar to GB:AE000666 percent identity: 46.33; identified by sequence similarity; putative.
       0.750
argS
arginyl-tRNA synthetase (argS); Identified by sequence similarity; putative; Belongs to the class-I aminoacyl-tRNA synthetase family.
 
    0.741
ribL
Glycerol-3-phosphate cytidyltransferase (taqD); Catalyzes the transfer of the AMP portion of ATP to flavin mononucleotide (FMN) to produce flavin adenine dinucleotide (FAD) coenzyme. To a lesser extent, is also able to utilize other nucleotides such as CTP and GTP as substrates, producing the modified coenzymes, flavin cytosine dinucleotide (FCD) and flavin guanine dinucleotide (FGD), respectively. Does not catalyze the reverse reaction to produce FMN and ATP from FAD and PPi. Does not function as a glycerol-3- phosphate cytidylyltransferase, as previously annotated in the complete gen [...]
       0.685
gch3
Conserved hypothetical protein; Catalyzes the formation of 2-amino-5-formylamino-6- ribofuranosylamino-4(3H)-pyrimidinone ribonucleotide monophosphate and inorganic phosphate from GTP. Also has an independent pyrophosphate phosphohydrolase activity; Belongs to the archaeal-type GTP cyclohydrolase family.
     
 0.648
thiL
Thiamine monphosphate kinase (thiL); Catalyzes the ATP-dependent phosphorylation of thiamine- monophosphate (TMP) to form thiamine-pyrophosphate (TPP), the active form of vitamin B1; Belongs to the thiamine-monophosphate kinase family.
 
   
 0.620
Your Current Organism:
Methanocaldococcus jannaschii
NCBI taxonomy Id: 243232
Other names: M. jannaschii DSM 2661, Methanocaldococcus jannaschii DSM 2661, Methanocaldococcus jannaschii str. DSM 2661, Methanococcus jannaschii DSM 2661
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