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
luxSQuorum-sensing autoinducer 2 (AI-2), LuxS; Involved in the synthesis of autoinducer 2 (AI-2) which is secreted by bacteria and is used to communicate both the cell density and the metabolic potential of the environment. The regulation of gene expression in response to changes in cell density is called quorum sensing. Catalyzes the transformation of S-ribosylhomocysteine (RHC) to homocysteine (HC) and 4,5-dihydroxy-2,3-pentadione (DPD). Belongs to the LuxS family. (169 aa)    
Predicted Functional Partners:
mtnN
Methylthioadenosine nucleosidase; Catalyzes the irreversible cleavage of the glycosidic bond in both 5'-methylthioadenosine (MTA) and S-adenosylhomocysteine (SAH/AdoHcy) to adenine and the corresponding thioribose, 5'- methylthioribose and S-ribosylhomocysteine, respectively. Belongs to the PNP/UDP phosphorylase family. MtnN subfamily.
 
 
 0.989
Ping_0113
Methionine synthase (B12-dependent); Catalyzes the transfer of a methyl group from methyl- cobalamin to homocysteine, yielding enzyme-bound cob(I)alamin and methionine. Subsequently, remethylates the cofactor using methyltetrahydrofolate.
    
 0.969
Ping_0683
TIGRFAM: cystathionine beta-lyase; PFAM: Cys/Met metabolism pyridoxal-phosphate-dependent enzymes; KEGG: son:SO2191 cystathionine beta-lyase.
 
 
 0.953
metE
Methionine synthase (B12-independent); Catalyzes the transfer of a methyl group from 5- methyltetrahydrofolate to homocysteine resulting in methionine formation; Belongs to the vitamin-B12 independent methionine synthase family.
    
 0.929
Ping_3644
KEGG: cps:CPS_2546 O-acetylhomoserine/O-acetylserine sulfhydrylase; TIGRFAM: O-acetylhomoserine/O-acetylserine sulfhydrylase; PFAM: Cys/Met metabolism pyridoxal-phosphate-dependent enzymes.
     
 0.900
Ping_2438
TIGRFAM: cysteine synthases; cysteine synthase A; PFAM: Pyridoxal-5'-phosphate-dependent enzyme, beta subunit; KEGG: sdn:Sden_2520 cysteine synthase A; Belongs to the cysteine synthase/cystathionine beta- synthase family.
  
 
 0.883
Ping_1275
Aspartate kinase; KEGG: vfi:VF2118 bifunctional aspartokinase I/homeserine dehydrogenase I; TIGRFAM: aspartate kinase; PFAM: aspartate/glutamate/uridylate kinase; homoserine dehydrogenase; amino acid-binding ACT domain protein; homoserine dehydrogenase, NAD-binding; In the C-terminal section; belongs to the homoserine dehydrogenase family.
     
 0.843
thrB
Homoserine kinase; Catalyzes the ATP-dependent phosphorylation of L-homoserine to L-homoserine phosphate; Belongs to the GHMP kinase family. Homoserine kinase subfamily.
     
  0.800
ilvA
L-threonine ammonia-lyase; Catalyzes the anaerobic formation of alpha-ketobutyrate and ammonia from threonine in a two-step reaction. The first step involved a dehydration of threonine and a production of enamine intermediates (aminocrotonate), which tautomerizes to its imine form (iminobutyrate). Both intermediates are unstable and short-lived. The second step is the nonenzymatic hydrolysis of the enamine/imine intermediates to form 2- ketobutyrate and free ammonia. In the low water environment of the cell, the second step is accelerated by RidA.
     
  0.800
gshA
TIGRFAM: glutamate--cysteine ligase; KEGG: ppr:PBPRA3047 putative glutamate-cysteine ligase; Belongs to the glutamate--cysteine ligase type 1 family. Type 1 subfamily.
     
 0.757
Your Current Organism:
Psychromonas ingrahamii
NCBI taxonomy Id: 357804
Other names: P. ingrahamii 37, Psychromonas ingrahamii 37, Psychromonas ingrahamii str. 37, Psychromonas ingrahamii strain 37, gas vacuolate str. 37
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STRING is a Core Data Resource as designated by Global Biodata Coalition and ELIXIR.