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.
Known Interactions
from curated databases
experimentally determined
Predicted Interactions
gene neighborhood
gene fusions
gene co-occurrence
Others
textmining
co-expression
protein homology
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Experiments
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[Homology]
Score
SRA_04711Dihydrofolate reductase; Key enzyme in folate metabolism. Catalyzes an essential reaction for de novo glycine and purine synthesis, and for DNA precursor synthesis. (165 aa)    
Predicted Functional Partners:
thyA
Thymidylate synthase; Catalyzes the reductive methylation of 2'-deoxyuridine-5'- monophosphate (dUMP) to 2'-deoxythymidine-5'-monophosphate (dTMP) while utilizing 5,10-methylenetetrahydrofolate (mTHF) as the methyl donor and reductant in the reaction, yielding dihydrofolate (DHF) as a by- product. This enzymatic reaction provides an intracellular de novo source of dTMP, an essential precursor for DNA biosynthesis.
 
 
 0.997
SRA_04436
Bifunctional homocysteine S-methyltransferase/5,10-methylenetetrahydrofolate reductase protein; COG0646 Methionine synthase I (cobalamin-dependent), methyltransferase domain.
    
 0.940
glyA
Serine hydroxymethyltransferase; Catalyzes the reversible interconversion of serine and glycine with tetrahydrofolate (THF) serving as the one-carbon carrier. This reaction serves as the major source of one-carbon groups required for the biosynthesis of purines, thymidylate, methionine, and other important biomolecules. Also exhibits THF-independent aldolase activity toward beta-hydroxyamino acids, producing glycine and aldehydes, via a retro-aldol mechanism.
  
 
 0.931
fmt
methionyl-tRNA formyltransferase; Attaches a formyl group to the free amino group of methionyl- tRNA(fMet). The formyl group appears to play a dual role in the initiator identity of N-formylmethionyl-tRNA by promoting its recognition by IF2 and preventing the misappropriation of this tRNA by the elongation apparatus; Belongs to the Fmt family.
  
 
 0.928
fhs
Formate--tetrahydrofolate ligase; COG2759 Formyltetrahydrofolate synthetase; Belongs to the formate--tetrahydrofolate ligase family.
  
 
 0.927
purN
Phosphoribosylglycinamide formyltransferase; Catalyzes the transfer of a formyl group from 10- formyltetrahydrofolate to 5-phospho-ribosyl-glycinamide (GAR), producing 5-phospho-ribosyl-N-formylglycinamide (FGAR) and tetrahydrofolate.
   
 
 0.919
purH
Bifunctional phosphoribosylaminoimidazolecarboxamide formyltransferase/IMP cyclohydrolase; COG0138 AICAR transformylase/IMP cyclohydrolase PurH (only IMP cyclohydrolase domain in Aful).
    
 0.917
SRA_04126
Putative folyl-polyglutamate synthetase; COG0285 Folylpolyglutamate synthase; Belongs to the folylpolyglutamate synthase family.
     
 0.911
SRA_04851
Putative folyl-polyglutamate synthetase; COG0285 Folylpolyglutamate synthase; Belongs to the folylpolyglutamate synthase family.
     
 0.911
SRA_04716
Hypothetical protein; COG0554 Glycerol kinase.
       0.740
Your Current Organism:
Streptococcus ratti
NCBI taxonomy Id: 699248
Other names: S. ratti FA-1 = DSM 20564, Streptococcus ratti DSM 20564, Streptococcus ratti DSM 20564 = FA-1, Streptococcus ratti FA-1, Streptococcus ratti FA-1 = DSM 20564
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